The first patented condom was meant to be reused!
47
Your stomach produces a new layer of mucus every two weeks so that it doesn't digest itself.
160
More people use blue toothbrushes, than red ones!
66
Sex burns about 360 calories per hour.
860
Men have larger hearts; women's hearts beat faster.
77
Our brains have a negativity bias and will remember bad memories more than good ones.
15
If you stop working out, it takes twice as long to lose strength than it took to gain it.
16
