Brain damage occurs at an internal temperature of 105 degrees Fahrenheit
The sound you hear when you crack your knuckles is actually the sound of nitrogen gas bubbles bursting
Hair is the fastest growing tissue in the body, second only to bone marrow
Human hair and fingernails continue to grow after death
The only part of the body that has no blood supply is the cornea in the eye. It takes in oxygen directly from the air
An average person perspires a gut-wrenching 278 gallons of sweat each year
The human spinal cord is 45 cm long in men and 43 cm long in women
The liquid inside young coconuts can be used as substitute for blood plasma
The lifespan of a taste bud is ten days
Babies are born without knee caps. They don’t appear until the child reaches 2-6 years of age
