After age 30, the brain shrinks a quarter of a percent (0.25%) in mass each year.
139
The largest cell in the human body is the female egg and the smallest is the male sperm.
682
Your fingernails grow faster in summer.
744
The average person's skin weighs twice as much as their brain.
131
We forget why we have entered a room because passing through doors creates an ‘event boundary’ causing the brain to file away what we were just thinking about.
26
Having sex can make a woman look younger and more attractive due to the release of estrogen and collagen.
346
Tigers can see 6 times better at night than humans.
305