Stress can result in more headaches as a result of the body rerouting blood flow to other parts of the body.
92
If every muscle in your body could pull in one direction, you could lift nearly 25 tons.
22
The average sperm cell swims at 8 inches per hour.
76
The human brain uses approximately as much energy as a 10 watt light bulb.
120
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Your thumb is about the same size as your nose.
124
Poor eyesight (myopia) is associated with higher IQ.
232
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127