How Long Can the Brain Go Without Oxygen?
Brain cells are very sensitive to a lack of oxygen. Some brain cells start dying less than 5 minutes after their oxygen supply disappears.
Education and Exercise Can Keep the Brain Young
Brain age decreases by 0.95 years for each year of education, and by 0.58 years for every daily flight of stairs climbed, a study found.
Why old people wake up early?
Our brains have a sleep section, and something mysterious happens to it as we age.