Kissing actually has the biological purpose of passing on biological information and chemical signals to assess mating possibilities and status.
9
When you walk down a steep hill, the pressure on your knees is equal to three times your body weight.
199
Nearly 50% of the world's scientists are assigned to military projects.
71
Indoor pollution is 10 times more toxic than outdoor pollution.
62
Nylon is made from coal and petroleum.
42
The idea of left brain (logical) and right brain (creative) has no basis in neuroscience and is in fact a myth.
16
Out of all the senses, smell is most closely linked to memory.
146
Sound at the right vibration can bore holes through a solid object.
134