Coughing can cause air to move through your windpipe faster than the speed of sound - over a thousand feet per second!
197
We blink 25 times a minute.
51
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
More people have a phobia of frogs than rats.
41
The adult human brain weighs about 3 pounds (1,300-1,400 g).
99
Fidgeting can burn about 350 calories a day.
201
