The harder you concentrate on falling asleep, the less likely you are to fall asleep.
34
Oak trees can live 200 or more years.
61
To get a song out of your head, try doing something like a puzzle or Sudoku.
13
An underwater forest off the coast of Alabama that is 50,000 years old was uncovered by Hurricane Katrina.
16
Contrary to popular belief, hair does not grow back darker and thicker after it has been shaved.
71
