Why do you raise our legs for fainting?

When a person faints, their blood pressure drops and their heart rate slows down. This can cause a lack of oxygen to the brain, which can lead to unconsciousness. Raising the legs helps to increase blood pressure and heart rate, which can help to restore consciousness.

When you raise your legs, it allows gravity to pull blood back into the heart and brain, which helps to restore blood pressure and oxygen levels. This can help to bring a person out of a faint.

In addition, raising the legs can help to prevent a person from slipping into shock. When a person is in shock, their blood pressure is dangerously low and their heart rate is rapid. This can be a life-threatening condition, so it's important to seek medical help if someone is in shock.

If you see someone who is about to faint, help them to sit down with their head between their knees. You can also loosen their clothing and give them some cool air to breathe. If they do faint, raise their legs and stay with them until they come around. If they do not come around within a few minutes, call for medical help.