try to sit down to avoid any kind of injury if you faint. People with respiratory conditions, such as asthma, have an increased risk of passing out during
Understand the basics of fainting and blacking out from WebMD experts. Discover the causes and learn when to seek medical assistance
To follow this method, hold your breath for as long as you can. Most people will not be able to do this for very long and will experience oxygen shortage very quickly. This will cause the brain to go into crisis mode making you feel light headed and unsteady before you faint. By holdi...
The heart pumps more forcefully and the blood vessels relax, but the heart rate does not compensate fast enough to maintain blood flow to the brain. People older than 45 years of age rarely experience a first "common faint." Causes of vasovagal syncope include the following: Environmental ...
The article discusses the causes of syncope or fainting. People faint when the brain does not get enough blood and the most common type of fainting is uncomplicated syncope. Heart abnormality can also cause fainting usually due to abnormal heart rhythm or blockages in arteries that supply the ...
Causes of lightheadedness may bedehydration, medication side effects, sudden blood pressure drops, low blood sugar, and heart disease or stroke. Feeling woozy, lightheaded, or a little faint is a common complaint among older adults. What to eat if feeling faint?
This anti-adrenaline effect decreases the ability of the heart to pump blood upward toward the brain. Without blood flow, the brain turns off. In Victorian England, young ladies' sensibilities were easily offended causing a vasovagal episode called a swoon. Some people faint at the sight of ...
You may develop an allergy after you have been exposed to an allergen more than once. Allergies are most common in children and elderly people, but anyone can have an allergic reaction. Your risk is also increased if you have a family history of allergies or a medical condition such as ...
What causes faint bands in gel electrophoresis? Purpose of Gel Electrophoresis: Scientists use gel electrophoresis when they need to separate proteins or DNA molecules based on size. Gel electrophoresis is important to many areas of molecular biology, including genetic testing, genetic engineering, and...
(Syncope) nSyncope is the medical term for fainting. Faint-ing occurs fairly commonly in children and teensand is usually not serious. In a small percentageof cases, fainting can be caused by heart rhythmproblems (abnormal heartbeat) or other uncom-mon causes. Tests may be needed to ...