Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.
Did you know?
Prostaglandins were first isolated from human semen in Sweden in the 1930s. They were so named because the researcher thought that they came from the prostate gland. In fact, prostaglandins exist and are synthesized in almost every cell of the body.
Did you know?
Vaccines prevent between 2.5 and 4 million deaths every year.
Did you know?
After a vasectomy, it takes about 12 ejaculations to clear out sperm that were already beyond the blocked area.
Did you know?
Green tea is able to stop the scent of garlic or onion from causing bad breath.
Overview of the citric acid cycle
The Calvin cycle
The Sunspot Cycle
An oral contraceptive showing the daily doses and the different formulation taken in the last 7 days
stages of the family cycle
Linking step between glycolysis and the Krebs cycle.