The Basics of Fainting
Fainting, also known as syncope (pronounced SIN-ko-pee), is a sudden loss of consciousness and posture caused by decreased blood flow to the brain. It is a symptom of sleep apnoea or narcolepsy.
Fainting can be caused by conditions that interfere with the parts of the nervous system that regulate blood pressure and heart rate. If you take certain high blood pressure drugs, you may be more likely to faint. Autonomic nervous system problems include dysautonomia and autonomic insufficiency, which are conditions that interfere with the parts of the nervous system that regulate blood pressure and heart rate.
What causes you to blackout?
When your blood alcohol level is high, you may experience blackouts. Alcohol impairs your ability to form new memories while intoxicated, but it does not erase memories formed prior to intoxication. As you drink more alcohol and your blood alcohol level rises, the rate and length of memory loss increases.
What happens to your body when you pass out?
When a person faints, they lose consciousness for a brief period of time. It is recommended that you lay the person down and elevate their feet because more blood can flow to the brain when they are lying down.
What is the difference between passing out and blacking out?
Passing out is losing consciousness and not being able to be awakened, while blacking out is losing memory and not being able to remember what happened because your brain has lost the ability to form new memories due to intoxication.
Are blackouts serious?
A blackout is a loss of memory caused by a variety of factors, including the effects of drugs or alcohol, a circulatory problem, or a problem within the brain, such as epilepsy. Although it may not be serious, it is important to see your doctor and try to determine the underlying cause.
Can you blackout and still be awake?
A blackout is not the same as “passing out,” which refers to falling asleep or losing consciousness as a result of excessive drinking. During a blackout, a person is awake but their brain is not creating new memories.
Should I go to the ER after fainting?
Even if you think it’s just because you haven’t eaten all day, go to the ER if you have: Any loss of consciousness or fainting. It could 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.
Do you still breathe when you pass out?
They may be unconscious for a few seconds u2014 as in fainting u2014 or for longer periods of time; they do not respond to loud noises or shaking, and they may even stop breathing or have a faint pulse.
How long does passing out last?
Most fainting episodes are brief and harmless, lasting only a few seconds, though they can make a person feel unwell and take several minutes to recover from. If a person does not recover quickly, seek immediate medical attention.
Does blacking out damage your brain?
Drinking too much on a regular basis can have long-term consequences, but blacking out does not cause brain damage. A person who drinks heavily for a long time and may experience frequent blackouts as a result is more likely to experience general memory loss, even if they are not intoxicated.
Is blacking out losing consciousness?
The temporary loss of consciousness followed by the return to full wakefulness is known as fainting, “blacking out,” or syncope. This loss of consciousness may be accompanied by a loss of muscle tone, which can result in falling or slumping over.
What is fainting a sign of?
Heart problems, such as irregular heartbeats, 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 are all possible causes of fainting.
Can anxiety cause blackouts?
Psychogenic blackouts are caused by stress or anxiety, and they are most common in young adults. They can be difficult to diagnose.
Is it normal to blackout for a few seconds?
Fainting occurs when your brain doesn’t get enough oxygen and you lose consciousness for a short period of time; the medical term for this is syncope, but it’s more commonly known as “passing out.” A fainting spell can last anywhere from a few seconds to a few minutes.
What mental illness causes blackouts?
During a manic episode, people with bipolar disorder may experience a bipolar blackout, in which they are unaware of their surroundings or actions and have difficulty remembering them later.