| It takes about 20 seconds for a red blood cell to circle the whole body. |
| The bird flu virus could evolve into a form that is easily spread between people, resulting in a highly contagious and lethal disease. |
| The Chinese, in olden days, used marijuana only as a remedy for dysentery. |
| It takes about 20 seconds for a red blood cell to circle the whole body. |
| The bird flu virus could evolve into a form that is easily spread between people, resulting in a highly contagious and lethal disease. |
| The Chinese, in olden days, used marijuana only as a remedy for dysentery. |
| Children who are breastfed tend to have an I.Q. seven points higher than children who are not. |
| The tooth is the only part of the human body that cannot heal itself. |
| Astronauts can't belch- there is no gravity to separate liquid from gas in their stomachs. |
| Heroin is the brand name of morphine once marketed by Bayer |