The enamel in your teeth is the hardest substance in your body.
Amazing fact: Vitamin E
Vitamin E protects the brain cells from damage caused by alcohol consumption.
Amazing fact: Babies
Babies always have blue eyes when they are born. Melanin and exposure to ultraviolet light are needed to bring out the true color of babies' eyes. Until then they all have blue eyes.
Amazing fact: ophthalmic surgery
Ophthalmic surgery was one of the most advanced areas of medicine in the ancient world. Detailed descriptions of delicate cataract surgery with sophisticated needle syringes is contained in the medical writings of Celsus (A.D. 14-37)
Amazing fact: Visual creature
We are visual creatures, as almost 90% of the information we receive about our environment comes from our eyes.
Amazing fact: Hair
A hair grows by 0.3 to 0.5mm per day, 1 to 1.5cm per month and 12 to 15cm per year.
Amazing fact: Healthy adult
In an average healthy adult, the volume of blood is one-eleventh of the body weight, or between 5 and 6 quarts. (The amount of oil used in the average V8 engine)
