Lack of water is the #1 trigger of daytime fatigue.
148
If you stop working out, it takes twice as long to lose strength than it took to gain it.
16
If you were to roll a lung from a human body and out flat it would be the size of a tennis court.
36
Each nostril of a human being register smell in a different way. Smells that are made from the right nostril are more pleasant than the left.
38
There is a disease called ichthyosis that turns the skin scaly like a fish.
90
Some people have a "natural alarm clock" allowing them to wake up when they want. This is actually caused by a burst of the stress hormone adrenocorticotropin.
15
The human sigh acts as a physiological reset button.
23