There are glasses which allow a red-green color-blind person to see colors the way everyone else does.
22
It takes twice as long to lose new muscle if you stop working out than it did to gain it.
127
Gardening is said to be one of the best exercises for maintaining healthy bones.
40
Flu shots only work about 70% of the time.
18
A person infected with the SARS virus, has a 95-98% chance of recovery.
23
Dieters who sleep more take off more fat that those who sleep less.
159
A person can live without food for about a month, but only about a week without water.
156