If you’re feeling lightheaded or faint, sit down and put your head between your knees. When your brain doesn’t get enough oxygen, it makes you feel dizzy and lightheaded. This means that oxygenated blood may flow to your brain at a slower rate than normal. It can take a little longer for your blood vessels to catch up. When you abruptly stop exercising, your heart and muscles quickly return to their normal pace. They keep the blood pumping, so that your muscles can get the oxygen they need.

When you’re exercising, your heart and muscles are working in overdrive. This can happen during any type of exercise, but may be more common when you fail to cool down after a vigorous workout. Some people experience a more rapid drop. Your blood pressure is normally at its lowest point about 30 to 60 minutes after exercise. You can do this by snacking on whole grains or lean proteins about an hour or so before your workout. To keep your blood sugar levels from dropping during your workouts, make sure your body has plenty of glucose reserves to draw on. Juice contains fructose, a natural form of glucose that the body absorbs quickly. Low blood sugar can be easily remedied by eating a small snack, like a banana.įor faster results, try drinking a glass of juice. When your brain is starved for glucose, you may feel dizzy. Your brain relies on glucose to function normally. Your body taps into your reserves, drawing glucose from your liver. Once that’s depleted, your blood sugar drops. When you exercise, your muscles consume more energy than normal.ĭuring the first 15 minutes of exercise, your body draws on the sugar (glucose) floating around in your bloodstream and muscles to sustain you.

Symptoms after fainting