You can't tickle yourself.
29
When you are looking at someone you love, your pupils dilate, they do the same when you are looking at someone you hate.
1k
When you kiss someone for the first time, you get a spike in the neurotransmitter dopamine, making you crave more.
23
On average, a human being will have sex more than 3,000 times and spend two weeks kissing in their lifetime.
161
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
The human brain is more active during sleep than during the day.
28
Women have about four times as many foot problems as men; lifelong patterns of wearing high heels often are the culprit.
111
Our brains have a negativity bias and will remember bad memories more than good ones.
15