An average human being loses about 40 to 100 strands of hair a day.
Orange juice helps the body absorb iron more easily.
A person will die from total lack of sleep sooner than from starvation. A person can survive upto 10 days without sleep, while he can survive for a few weeks without food.
The thumb has a separate region reserved for it in the brain.
The air released from a sneeze can exceed the speed of 100 mph.
The heart is about the same size as your fist.
An average human scalp has one lakh hairs.