Your fingernails grow faster in summer.
744
After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
Our eyes are always the same size from birth, but our nose and ears never stop growing.
266
The human brain uses approximately as much energy as a 10 watt light bulb.
120
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Human hair and fingernails continue to grow after death.
7
There are about 255 babies born worldwide every minute.
46