An average heart beats 100,000 times a day, pumping some 2,000 gallons of blood through its chambers. Over a 70-year life span, that adds up to more than 2.5 billion heartbeats.
73
Your fingernails grow faster in summer.
744
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
Your thumb is about the same size as your nose.
124
You forget 90% of your dreams.
256
There are about 255 babies born worldwide every minute.
46
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23