Drinking one cup of coffee a day can reduce the risk of depression by 20%.
Not getting enough sleep, less than 7 hours a day, can shorten your lifespan.
The number of hairs on your head is directly related to their color. In fair-haired people, the average number is 140,000, in brunettes – 102,000, in brown-haired people – 109,000, and in redheads the least – 88,000.
Nails on the hands grow 60-70% faster than on the feet.
The total length of all nerves in the body of an adult is 75 kilometers.