What Does Alcohol Do to Your Brain

Most people know that alcohol affects the liver. The brain gets far less attention in that conversation, which is a pity, since a drink reaches the brain first and leaves its clearest mark there. A drink reaches the brain within minutes, and it changes how the brain handles memory, attention, mood and judgement. Those changes are obvious when a person is drunk, but they do not stop when the drink wears off. Over months and years, regular drinking changes the brain in quieter ways that are easy to miss, until they begin to affect work, relationships and everyday life.

What follows walks through it in simple language — the first minutes after a drink, the slow changes to memory and thinking, the reason heavy use is tied to serious harm, and the ways things improve once drinking stops. All of this is broad information for learning, not guidance tailored to one person’s health. If your own drinking worries you, or you are concerned about someone close to you, a trained clinician is the best person to turn to for help.

What Happens in the Minutes After a Drink

Alcohol is a small molecule, and it passes easily from the stomach and the small intestine into the blood, and from the blood into the brain. It usually reaches the brain within minutes of the first drink, and its effects begin before a person feels drunk. The first change is in the brain’s signalling. Alcohol slows down the excitatory signals that keep the brain alert, and it boosts the inhibitory signals that calm it down. That is why a drink can feel relaxing. The brain is literally being slowed, and the feeling of relaxation is the feeling of that slowing.

At low amounts, that slowing can feel pleasant. A person may feel less anxious, more sociable, and less worried about the day. That is the reason many people drink: to relax, to unwind, or to feel more at ease in company. But the relaxation is not free. Even at low amounts, alcohol begins to affect judgement, reaction time and memory. A person may find it harder to follow a complicated conversation, harder to remember a detail they were just told, or slower to react to something unexpected. Those changes are small at first, but they are real, and they are the reason driving after drinking is dangerous, even after a small amount.

As the amount rises, the effects become stronger and more obvious. Speech becomes slurred, balance becomes unsteady, and thinking becomes muddled. A person may repeat themselves, forget what they were saying, or make decisions they would not make when sober. That is because alcohol is affecting the parts of the brain that handle planning, self-control and memory. The prefrontal cortex, which helps us weigh consequences and resist impulses, is particularly sensitive to alcohol, and when it is slowed, a person becomes more impulsive and less able to judge risk. That is why people who are drunk often do things they regret the next day, and why they often cannot remember doing them.

Memory: Why Drinking Makes You Forget

Memory is one of the first things alcohol affects, and it is one of the most noticeable. New memories are laid down with help from a seahorse-shaped region called the hippocampus, and drink disrupts the work that region does. After a few drinks, the hippocampus struggles to transfer short-term memories into long-term storage, which means that events from the evening may never be properly recorded. That is why a person can have a conversation, or even a whole evening, that they cannot remember the next day. That gap is called a blackout, and it is not the same as passing out. A person in a blackout can still talk, walk and act, but their brain is not recording what is happening.

Blackouts are a warning sign. They mean that alcohol has reached a level where the brain cannot form memories properly, and they are more common than many people realise, especially among people who drink quickly or on an empty stomach. A blackout does not mean the person was unconscious. It means the memory system was switched off while the person was still awake, and that is a serious effect. Repeated blackouts are linked with a higher risk of longer-term memory problems, because the same process that causes a blackout can, over time, damage the hippocampus itself.

Even without blackouts, regular drinking affects memory in quieter ways. A person may find it harder to remember names, appointments, or where they put things. They may struggle to learn something new, or to remember a conversation from the day before. Those small slips are often blamed on age or tiredness, when drinking is quietly contributing to them. The effect is dose-dependent, which means it gets worse with more drinking, and it is worse for people who drink heavily and regularly than for people who drink lightly and rarely. But even light regular drinking can affect memory, especially in older people, whose brains are more sensitive to alcohol.

Attention, Concentration and Everyday Thinking

Attention is another area that alcohol affects quickly. After a drink, it becomes harder to focus on one thing for long, harder to ignore distractions, and harder to switch between tasks. A person may start a task and then lose track of it, or they may find that they have read the same page three times without taking it in. That is because alcohol slows the brain’s processing speed, which is the speed at which it takes in information and responds to it. When processing speed falls, everything takes longer: reading, listening, deciding, reacting.

Concentration is affected in a similar way. A person who drinks regularly may find that they cannot concentrate for as long as they used to, or that they need more effort to stay focused on work. That is partly because alcohol disrupts sleep, and a tired brain concentrates poorly, and partly because alcohol itself affects the brain’s attention systems. The effect is often most noticeable the morning after drinking, when the brain is still recovering, but it can also be present on days when a person has not drunk, if they drink regularly. That is because the brain is still adjusting to the repeated presence of alcohol, and it has not fully recovered between drinks.

Problem-solving and planning are affected too. The prefrontal cortex, which handles those tasks, is sensitive to alcohol, and regular drinking is linked with poorer performance on tasks that need careful thought, patience and judgement. A person may find it harder to plan a week, to solve a problem at work, or to make a careful decision about money. Those difficulties are not dramatic in a single day, but they add up over weeks and months, and they can affect work, finances and relationships in ways that are hard to trace back to drinking, because the link is not obvious.

Judgement, Impulses and Risky Decisions

Judgement is the area where alcohol’s effects are most dangerous, because poor judgement can lead to harm that lasts long after the drink has worn off. Alcohol lowers inhibitions, which is the brain’s ability to stop itself from doing something risky or unwise. When inhibitions are lowered, a person is more likely to drive after drinking, to get into an argument, to spend money they cannot afford, or to take a risk they would normally avoid. That is not because alcohol makes a person a different person. It is because it weakens the part of the brain that normally says no.

The effect on judgement starts early, often before a person feels drunk. A person who has had one or two drinks may feel perfectly capable of driving, or of making an important decision, when their reaction time and judgement are already impaired. That is why the legal limit for driving is low in most countries, and why health guidance advises against drinking before driving at all. The brain’s ability to judge its own impairment is one of the first things alcohol affects, which means a person cannot reliably tell how impaired they are.

Over time, regular drinking can affect judgement even when a person is sober. That is because the prefrontal cortex, which handles judgement, is damaged by long-term heavy drinking, and it recovers slowly. A person who drinks heavily for years may find that they make hastier decisions, that they struggle to weigh consequences, and that they find it harder to resist impulses, even on days when they have not drunk. That change is not a character flaw. It is the result of alcohol’s effect on the brain, and it is one of the reasons heavy drinking is so hard to stop, because the very part of the brain that would help a person decide to stop is itself impaired.

Mood, Anxiety and Sleep

Drink and mood pull at each other constantly, each one shaping the other over time. Many people drink to cope with stress, anxiety or low mood, and in the moment, a drink can feel calming. Yet that quiet feeling fades fast, and the bill for it arrives later. Alcohol disrupts the brain’s chemistry, and when it wears off, anxiety and low mood often return worse than before. That rebound is sometimes called the morning-after anxiety, and it is a common experience for people who drink heavily. The brain, which was slowed by alcohol, rebounds into a state of overactivity, and that overactivity feels like anxiety, restlessness and worry.

Over weeks and months, regular drinking is linked with higher levels of anxiety and depression. That is partly because alcohol disrupts sleep, and poor sleep makes mood worse, and partly because alcohol itself affects the brain’s mood systems. The dopamine system, which is linked with pleasure, is affected by alcohol in a similar way to nicotine: it is boosted briefly, then it falls below normal, leaving a person feeling flat. That cycle of brief lift followed by a longer low is one of the reasons people keep drinking, because the drink feels like it helps, when it is actually making the underlying problem worse.

Sleep is badly affected by alcohol. A drink can make a person feel sleepy, and it can help them fall asleep quickly, but the sleep it produces is not good sleep. Alcohol fragments sleep, which means a person wakes more often during the night, and it suppresses the deep sleep and the dreaming sleep that the brain needs to recover. The result is that a person wakes feeling unrested, even after a full night in bed. That poor sleep affects concentration, memory and mood the next day, and over time, it contributes to the longer-term damage that alcohol does to the brain.

The Long-Term Damage: Shrinking and Slower Thinking

The most serious damage alcohol does to the brain happens over years of heavy drinking. Brain imaging studies show that heavy drinkers, on average, have smaller brains than non-drinkers of the same age, and the shrinking is most noticeable in the parts of the brain that handle memory, thinking and judgement. That shrinking is not just a picture on a scan. It is linked with real changes in how a person thinks: slower processing, poorer memory, weaker planning, and a lower ability to cope with new information. The brain is literally losing tissue, and with it, it is losing function.

That shrinking is caused by several things at once. Alcohol is toxic to brain cells, and it damages them directly. It also damages blood vessels, which reduces the blood flow the brain needs. Drink also sets off lasting swelling inside the brain — the body’s alarm after injury — and when that swelling never fully settles, brain tissue suffers month after month. And it interferes with nutrition, because heavy drinkers often eat poorly, and because alcohol interferes with the absorption of vitamins, especially thiamine, which the brain needs to function. Thiamine deficiency is linked with a serious brain condition that affects memory and coordination, and it is one of the most severe consequences of long-term heavy drinking.

The risk of dementia is higher in heavy drinkers. Research tracking thousands of people across decades keeps reaching the same finding: heavy drinkers face a greater chance of dementia, Alzheimer’s included, and the more they drink, the steeper that chance climbs. The link is thought to work through the shrinking, the blood-vessel damage, and the direct toxicity of alcohol to brain cells. Not every heavy drinker ends up with dementia, yet the odds tilt against them, and the danger is genuine rather than imagined. The good news is that the risk falls after stopping, although it does not disappear overnight, and the sooner a person stops, the more the brain can recover.

What Changes After Stopping

The brain starts to recover quickly after stopping alcohol, and the recovery is real and measurable, although it takes time. In the first days, the most noticeable change is in sleep. Sleep becomes deeper and less broken, and mornings feel more rested. That improvement in sleep alone can make thinking clearer, because a rested brain concentrates better than a tired one. Mood also begins to steady, although the first week can be difficult, with anxiety and low mood as the brain readjusts. That difficulty is withdrawal, not damage from stopping, and it usually eases over one to two weeks.

Memory and concentration improve gradually over weeks and months. The brain’s processing speed, which was slowed by alcohol, begins to return to normal, and many former drinkers find that they can focus for longer, remember more, and solve problems more easily than they could while drinking. Progress comes slowly and unevenly from person to person, yet it shows up often enough that clinicians now reassure people of the reverse of their old fear — giving up drink does not cloud thinking further. In most cases, it makes it better, and the improvement continues for months after the last drink.

The brain’s size can also recover to some extent. Imaging studies show that some of the shrinking seen in heavy drinkers reverses after months of not drinking, as the brain’s tissue recovers and as inflammation falls. That recovery is not complete, especially after many years of heavy drinking, and some damage may be permanent. But the fact that the brain can recover at all is a powerful reason to stop, at any age. The brain can bounce back in surprising ways, and no calendar date closes the door on healing. The best time to stop was years ago. The second-best time is today.

Alcohol, the Brain and Everyday Life

The effects of alcohol on the brain are not confined to tests and scans. They show up in everyday life in ways that are easy to miss but hard to live with. A person may find it harder to follow a conversation, harder to remember a promise, harder to plan a week, or harder to make a careful decision about money. Those difficulties affect work, where concentration and judgement matter, and they affect relationships, where remembering what was said and keeping a promise matter. A partner may notice that the person forgets things, or that they are more impulsive, or that they are harder to talk to, and they may not connect those changes with drinking, because the link is not obvious.

Driving is the most dangerous everyday effect. Alcohol slows reaction time, impairs judgement, and affects the ability to judge distance and speed, even at low amounts. That is why drinking and driving is one of the leading causes of road deaths in many countries. The risk is not limited to heavy drinking. Even a small amount of alcohol increases the risk of a crash, and the risk rises sharply with the amount drunk. The only safe amount of alcohol before driving is none, and that is a message that health guidance repeats because it is so important.

Work is affected in quieter ways. A person who drinks regularly may find that they are less productive, that they make more mistakes, or that they struggle to concentrate in meetings. They may arrive late, or miss work, or find that their relationships with colleagues are strained. Those effects are not always recognised as being linked with drinking, because they are gradual, and because the person may not want to admit the link. But they are real, and they are a reason to take the brain effects of alcohol seriously, even before they become severe.

Alcohol, Age and a Brain With Less Reserve

Age changes how alcohol affects the brain, and that change is worth understanding. A younger brain has more reserve, which means it can cope with damage and still function reasonably well, at least for a while. An older brain has less reserve, because it has already lost some tissue through normal ageing, and because its blood vessels are less flexible. When alcohol is added to that picture, the effects are stronger and the damage builds faster. An older person who drinks the same amount as a younger person will often feel more confused, more unsteady, and more forgetful, and they will take longer to recover the next day.

That does not mean younger people are safe. A young brain is still developing, especially in the late teens and early twenties, when the prefrontal cortex is still maturing. Alcohol during those years can interfere with that development, and it can affect learning, memory and judgement at a time when those skills are being built for adult life. The risk is different at different ages, but it is present at every age. There is no age at which alcohol is harmless to the brain, and there is no age at which stopping is pointless. The brain benefits from stopping at thirty, at fifty, and at seventy, because at every age, removing alcohol gives it a chance to recover what it can.

For older people, the practical risks are also higher. Alcohol affects balance, and a fall in an older person can cause a serious injury. It interacts with medicines, many of which are more common in later life, and those interactions can make confusion and drowsiness worse. It also affects sleep more strongly in older people, who often already sleep less deeply. Those practical risks are a reason to be especially careful about drinking in later life, and to talk to a health professional about how much is safe, if any, for a particular person.

Support also plays a large part in how well the brain recovers. A person who stops drinking with help — from family, from friends, or from a health professional — is more likely to stay stopped than a person who tries entirely alone, because the difficult days are easier to get through when someone else knows what is happening. Support does not need to be formal. It can be a family member who does not offer a drink, a friend who suggests an evening without alcohol, or a doctor who helps plan the safest way to stop. Heavy drinking should never be stopped suddenly without medical advice, because withdrawal can be dangerous, and a health professional can explain how to stop safely. That advice is not a sign of weakness. It is the sensible way to protect the brain while it heals, and it gives recovery the best possible start.

My Take:

I will be honest with you. I think alcohol is one of the most underestimated risks to the brain, because it is legal, it is social, and it is woven into celebrations, meals and evenings in a way that makes it feel normal. A drink after work, a drink with friends, a drink to celebrate — those are all familiar, and they do not feel like a health risk. But I have read enough about what alcohol does to know that the normalness is a trick. The brain is being slowed, memory is being interrupted, judgement is being weakened, and sleep is being broken, every time a person drinks, and over years, those small effects add up to real damage. That quiet accumulation is what makes alcohol dangerous, and it is also what makes it hard to see.

The memory effect is the part I think about most, because it is the part that people notice and then dismiss. A person forgets a conversation, or a name, or a promise, and they blame it on age, or tiredness, or being busy. They do not blame alcohol, because the forgetting happened the morning after, when the drink was already out of their system. But the forgetting is not a coincidence. Alcohol interferes with the hippocampus, the part of the brain that records new memories, and when that part is switched off, the memory is never properly stored. A blackout is the most dramatic version of that, but the same process is happening in a quieter way every time a person drinks heavily. If you have woken up and realised you cannot remember part of the evening, please take that seriously. It is not a funny story. It is your brain telling you that it could not do its job.

Judgement is the part I find most frightening, because poor judgement can cause harm that lasts long after the drink has worn off. A decision to drive, a harsh word in an argument, a sum of money spent, a risk taken — those are all decisions that alcohol makes more likely, because it weakens the part of the brain that normally says no. And the cruel part is that alcohol also weakens the brain’s ability to judge its own impairment, so a person who has had a few drinks feels perfectly capable, when they are not. I think about the people who have driven after drinking because they felt fine, and I find that terrifying, because feeling fine is not the same as being fine. The only safe amount before driving is none, and I would rather say that plainly than soften it.

Mood is the part that keeps people drinking, and I understand why. A drink feels calming in the moment. It takes the edge off stress, it makes a difficult evening feel easier, it helps a person fall asleep. But that calm is borrowed, and it is repaid with interest the next morning, when anxiety returns worse than before, when sleep has been broken, and when mood is lower than it was. Over weeks, that cycle makes anxiety and depression worse, not better, even though each drink feels like it helps. I think that is the cruellest trick alcohol plays: it offers itself as a solution to the very problem it is making worse. If you drink to cope with stress or low mood, please know that the relief is temporary, and the cost is real.

Sleep is the part I would most want people to understand, because it is so counterintuitive. Alcohol makes you feel sleepy, so it feels like it helps you sleep. But the sleep it produces is not good sleep. It is broken, shallow, and it suppresses the deep sleep and the dreaming sleep that the brain needs to recover. A person wakes feeling unrested, even after eight hours in bed, and they blame it on stress, or on age, or on a bad mattress, when the real cause is the drink the night before. Good sleep is one of the most important things for the brain, and alcohol takes it away, night after night, for as long as drinking continues. Stopping is one of the best things you can do for your sleep, and better sleep is one of the first improvements people notice.

The long-term shrinking is the part I find hardest to write about, because it sounds dramatic and it is dramatic. Brain imaging shows that heavy drinkers have smaller brains, and that the shrinking is linked with slower thinking, poorer memory and weaker judgement. That is not a metaphor. It is tissue being lost, and with it, function being lost. I do not say that to frighten you, but to be honest, because the risk is real and it is dose-dependent: the more a person drinks, and the longer they drink heavily, the greater the risk. The good news, and it is genuinely good news, is that the brain can recover, at least in part, after stopping. Some of the shrinking reverses, thinking improves, and the risk of dementia falls. That recovery is a reason to stop, at any age, after any length of drinking. It is never too late.

I also think about the people around the drinker, because alcohol does not only affect the person who drinks. A partner who has to repeat things, a child who notices that a parent forgets promises, a colleague who has to cover for mistakes — those people are affected too, and they did not choose that. I am not saying that to blame anyone. I am saying it because the brain effects of alcohol are not private. They show up in relationships, in work, and in family life, in ways that are hard to trace back to drinking, but that are real nonetheless. If you are worried about your drinking, or about someone else’s, talking to a health professional is a sensible first step, not a sign of weakness.

If you have stopped drinking, or you are thinking about stopping, I want you to know that the first week can be hard, and that the difficulty is normal. Anxiety, low mood, broken sleep and cravings are all part of the brain readjusting, and they usually ease over one to two weeks. That does not mean stopping was a mistake. It means your brain is healing, and healing is uncomfortable. Give it time, get support, and do not try to do it alone if you are finding it very hard. A doctor can help you plan, and can advise on the safest way to stop, especially if you drink heavily, because stopping suddenly after heavy use can be dangerous and should be done with medical advice.

Finally, I would say this to anyone who has never drunk, or who drinks only rarely: do not let drinking become a daily habit. It is far easier not to start than it is to stop, and the brain effects described in this article are a powerful reason to keep it that way. Alcohol is not a harmless way to relax. It is a substance that slows the brain, interrupts memory, weakens judgement, breaks sleep, and over time, damages the very organ that makes you who you are. The first drink feels like nothing special. The thousandth one is a habit that is hard to break, and a brain that is harder to heal. Walk away from the first one, and you will never have to deal with the problems described here. And if you are a parent, remember that children watch what you do. The most powerful thing you can do for your child’s health is to show them that a good evening does not need alcohol in it.

I also think about age, because the brain becomes more sensitive to alcohol as we get older. An older person who drinks the same amount as a younger person will often feel the effects more strongly, and the damage will build faster, because the brain has less reserve to cope with it. Memory, balance and judgement are all more vulnerable in later life, and alcohol makes each of them worse. That is not a reason to give up on an older person who drinks. It is a reason to take their drinking seriously, and to help them stop, because the benefits of stopping are just as real at sixty or seventy as they are at thirty. The brain can recover at any age, and it is never too late to give it that chance.

Work is another area where the brain effects of alcohol show up quietly. A person who drinks regularly may find that they are less productive, that they make more mistakes, or that they struggle to concentrate in meetings. They may arrive late, or miss work, or find that their relationships with colleagues are strained. Those effects are gradual, and they are easy to blame on stress, or on a heavy workload, or on getting older, when drinking is quietly contributing to them. If your work has become harder and you drink regularly, it is worth asking yourself whether the two are connected, honestly, without blame. The answer may be uncomfortable, but it may also be the first step towards making work easier again.

Family is the part that can make the biggest difference, and I think families need to hear this as much as the person drinking does. If someone in your home drinks heavily, your patience matters, but so does your honesty. It is not helpful to pretend the problem is not there, and it is not helpful to blame the person for it either. What helps is a clear, kind conversation: what you have noticed, how it affects you, and what support is available. A health professional can help with that conversation, and can advise on the safest way to stop, especially if drinking is heavy. You do not need to carry this alone, and neither does the person who drinks.

In the long run, I think stopping alcohol changes how a person sees themselves, in the same way that stopping any hard habit does. A person who has stopped has faced cravings, they have got through difficult evenings, and they have chosen, day after day, not to go back. That knowledge stays with them, and it makes the next hard thing a little easier. It is not just about memory, or sleep, or mood, although all of those matter. It is about proving to yourself that you can change a habit that felt permanent, and that proof is something no one can take away from you.

One last thing I would add is about the evenings that feel hardest, because those are the moments when a drink used to fit in. An evening after a long day, a gathering with friends, a celebration, a difficult conversation — those are all times when alcohol used to be the easy answer, and without it, the evening can feel strangely empty at first. I would suggest planning for those evenings in advance, rather than waiting for them to arrive unprepared. A walk before the gathering, a glass of water in your hand, a friend who knows you are not drinking, or a plan to leave early can all help. The evening does not need alcohol to be a good evening. It needs company, rest, and a clear head the next morning, and those are all things that stopping gives you back, one evening at a time. Over weeks, the evenings become easier, and many people find that they enjoy them more, not less, because they remember them properly and they wake up feeling rested.

I would also add that the brain heals best when the rest of the body is looked after too. Good food, enough water, regular sleep and gentle movement all help the brain recover, because healing needs nutrients, rest and blood flow. A person who stops drinking but eats poorly and sleeps badly will recover more slowly than a person who eats well and rests. That is not a criticism. It is simply how the body works, and it is a reminder that stopping is the first step, not the only step. Look after your brain, and look after yourself, and give recovery the conditions it needs to happen.

Frequently Asked Questions

How does alcohol affect decision-making?

Alcohol affects decision-making by slowing the prefrontal cortex, the part of the brain that weighs consequences and resists impulses. Even after one or two drinks, judgement is impaired, reaction time is slower, and a person is more likely to take risks they would normally avoid. The effect starts before a person feels drunk, and the brain’s ability to judge its own impairment is one of the first things affected, which is why a person can feel capable when they are not. Over time, heavy drinking can affect judgement even when sober, because that part of the brain is damaged.

Can alcohol cause foggy thinking even in light users?

Yes, it can, although the risk is lower than for heavy daily drinkers. Even light regular drinking affects attention, processing speed and memory, partly because alcohol disrupts sleep, and a tired brain thinks less clearly. Light users have reported foggy thinking, poor concentration and difficulty remembering details, especially the morning after drinking. The safest way to read the evidence is that less drinking means less strain, while no drinking means the strain stops growing.

How quickly can alcohol change clear judgement in everyday brain tasks?

Alcohol can cloud judgement within minutes of the first drink, because it reaches the brain quickly and slows the signals that handle planning and self-control. In everyday tasks like planning the week, holding a conversation or making a careful choice, that clouding can show up after a single drink. For some people, the effect is noticeable within weeks of regular drinking, and for others it builds slowly over months and years. What matters more than the exact date is the direction: the longer alcohol is used regularly, the more likely clear judgement is to show the strain.

Does stopping alcohol help thinking recover?

In many cases yes. Sleep usually improves within days, which alone makes thinking clearer, and memory and concentration improve gradually over weeks and months as the brain’s processing speed returns to normal. The first week can feel harder, because of withdrawal, but as that fades, most former drinkers find their thinking is clearer than it was while drinking. Some of the brain shrinking seen in heavy drinkers can reverse to some extent after months without alcohol, although some damage may be permanent. Even so, stopping gives the brain its best chance to repair itself.

Why do people keep using alcohol if it harms decision-making?

Habit, routine, social pressure and the quick feeling alcohol gives all play a part, and the harm to judgement arrives too slowly to feel like an immediate warning. Many people also use alcohol to cope with stress, tiredness or low mood, which makes it feel useful even while it weakens decision-making. The short-term relaxation is powerful and immediate, while the long-term harm is slow and quiet, so it is easy to ignore. Understanding that loop is often the first step toward breaking it, with support from family, friends or a health professional.

When should someone seek advice about alcohol and mental clarity?

It is sensible to seek advice when foggy thinking keeps returning, when poor concentration or memory interferes with work, sleep or family life, or when stopping alcohol feels very hard. A health professional can give general information, check for other causes, and explain the support options available. Seek advice urgently if stopping suddenly after heavy use causes severe shaking, confusion or other severe symptoms, because that needs medical attention. This article is general information only and is not a substitute for personal medical advice.

Sources

This article is general information only. It is not individual medical advice. If you are worried about your health, talk to a qualified health professional.