Dogs can be trained to identify the scent of lung cancer long before symptoms develop.
190
One human hair can support 3 ounces.
191
If you are cold you are more likely to be hungry because you use energy to keep warm.
143
The average sperm cell swims at 8 inches per hour.
76
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Most of us have microscopic, worm like mites named Demodex that live in our eyelashes and have claws and a mouth.
-137
When you take a step, you are using up to 200 muscles.
886