1 : to lose consciousness because of a temporary decrease in the blood supply to the brain. 2 archaic : to lose courage or spirit. 3 archaic : to become weak.

What happens when u faint?

When a person faints, they suffer a brief loss of consciousness. It is recommended that you lay the person down and elevate their feet. Most people will recover quickly after fainting once they lay down because more blood can flow to your brain.

What causes a person to faint?

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.