The average person's skin weighs twice as much as their brain.
131
Your fingernails grow faster in summer.
744
It took 200,000 years for humans to reach 3 billion in number. It took 40 years for the next 3 billion.
11
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
The human brain uses approximately as much energy as a 10 watt light bulb.
120
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