8 interesting ‘Did You Know’ facts
12% of sleepers dream in black and white.
2. No little toes?
Since humans have not developed a need for wisdom teeth, appendixes, or even little toes, scientists believe that those items may be phased out as humans evolve.
3. “Rule of 3”
The limit of the human body tends to follow a “Rule of 3”: 3 minutes without air, 3 hours without shelter in extreme conditions, 3 days without water and 3 weeks without food.
4. Lack of sleep
Sleeping less than 7 hours each night reduces your life expectancy.
5. Sweat glands
The average person has more than 2 million sweat glands on the surface on their body.
Speaking of, sweat is actually odourless. It’s the bacteria on your body that causes it to smell.
7. The pinky finger
Without your pinky finger, you would lose about 50% of your hand strength.
8. Knuckle cracking
A scientist cracked his knuckles on one hand for over 50 years to prove it did not cause arthritis.