Question: What Happens When You Blackout For No Reason?

What is fainting a sign of?

Many different conditions can cause fainting.

These include heart problems such as irregular heart beats, seizures, low blood sugar (hypoglycemia), anemia (a deficiency in healthy oxygen carrying cells), and problems with how the nervous system (the body’s system of nerves) regulates blood pressure..

What is the cause of sudden blackout?

The most common cause of blacking out is fainting. Other causes include epileptic seizures, syncope due to anxiety (psychogenic pseudosyncope) and other rare causes of faints. Other causes of blacking out may be due to low blood sugar (hypoglycaemia) and lack of oxygen (hypoxia) from a variety of causes.

What happens when you pass out for no reason?

Your heart rate slows, and your blood vessels widen. In turn, that causes your blood pressure to drop. When that happens, your body cannot deliver the blood your brain needs, and you lose consciousness. This kind of fainting doesn’t require treatment.

What are blackouts a symptom of?

Most unexplained blackouts are caused by syncope Many people, including doctors, assume that blackouts are due to epileptic seizures, but much more commonly they are due to syncope (pronounced sin-co-pee) – a type of blackout which is caused by a problem in the regulation of blood pressure or sometimes with the heart.

Can you be awake and have a blackout?

A Blackout is a state of temporary amnesia which occurs during or following the consumption of alcohol (beer, wine, or hard liquor). A person experiencing a blackout is awake and functioning during the time they are having a blackout, but is unable to partially or fully recall events later, when sober.

Should I go to the ER after fainting?

Go to the ER if you have: Any loss of consciousness or fainting. …even if you think it’s just because you haven’t eaten all day. It might be nothing, but it could also signal a heart or circulation problem or even a stroke. “There’s no way to determine the cause on your own,” says emergency physician Dr.

Is it OK to sleep after fainting?

Propping the person’s feet and lower legs up on a backpack or jacket also can help blood flow to the brain. Someone who has fainted will usually recover quickly. Because it’s normal to feel a bit weak after fainting, be sure the person stays lying down for a bit. Getting up too soon may bring on another fainting spell.

Can stress cause blackouts?

Most often it occurs in young adults as a result of stress or anxiety. However, the link between blackouts and stress may not be obvious. ‘Psychogenic’ does not mean that people are ‘putting it on’. In most cases a psychogenic blackout is an involuntary reaction of the brain to pressure or distress.

Are blackouts serious?

Alcohol-related blackouts generally don’t cause more widespread loss of memory. But blackouts can be very dangerous. That’s because people who’ve blacked out don’t know what they are doing and may do things they otherwise wouldn’t. The consequences may be embarrassing, or they could be dangerous.

How long can a blackout last?

A blackout may last from a few minutes to several days. It ends when the body absorbs the alcohol, and the brain is able to form memories again. Sleep helps end blackouts, since rest gives the body time to process the alcohol. Even one blackout can be dangerous.

What happens to your brain when you blackout?

Blackouts occur when your body’s alcohol levels are high. Alcohol impairs your ability to form new memories while intoxicated. It doesn’t erase memories formed before intoxication. As you drink more alcohol and your blood alcohol level rises, the rate and length of memory loss will increase.

Can lack of sleep cause blackouts?

Vasovagal Syncope It might be more likely to occur if the patient is relatively dehydrated, is exposed to extreme heat, has been standing for a long period of time, is sleep deprived or is under a lot of stress. After fainting due to a vasovagal episode, it is not uncommon for the person to have cold or clammy skin.