If the amount of water in your body is reduced by just 1%, you’ll feel thirsty.
It is impossible to sneeze and keep one’s eyes open at the same time.
55% of people yawn within 5 minutes of seeing someone else yawn.
A person can live without food for about a month, but only about a week without water.
You’ll drink about 75,000 litres (20,000 gallons) of water in your lifetime.
After a certain period of growth, hair becomes dormant. That means that it is attached to the hair follicle until replaced by new hair.
Hair on the head grows for between two and six years before being replaced. In the case of baldness, the dormant hair was not replaced with new hair.
Men loose about 40 hairs a day. Women loose about 70 hairs a day.
