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Did you know?
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?
Excessive alcohol use costs the country approximately $235 billion every year.
Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.
Did you know?
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.