There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
If you could remove all of your skin, it would weigh up to 5 pounds.
Did you know?
Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
Did you know?
The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.
The greenhouse effect.
A person with a defective "P" gene might only have it effect the EYES