|
|
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
A seasonal flu vaccine is the best way to reduce the chances you will get seasonal influenza and spread it to others.
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).
A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.