|
|
There are major differences in the metabolism of morphine and the illegal drug heroin. Morphine mostly produces its CNS effects through m-receptors, and at k- and d-receptors. Heroin has a slight affinity for opiate receptors. Most of its actions are due to metabolism to active metabolites (6-acetylmorphine, morphine, and morphine-6-glucuronide).
Bacteria have been found alive in a lake buried one half mile under ice in Antarctica.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
Pubic lice (crabs) are usually spread through sexual contact. You cannot catch them by using a public toilet.