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Did you know?
Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
Did you know?
There are 20 feet of blood vessels in each square inch of human skin.
Did you know?
Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.