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Author Question: Mr. Langley studied his incoming second-grade students' assessment data, then met with his ... (Read 111 times) |
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.
According to the CDC, approximately 31.7% of the U.S. population has high low-density lipoprotein (LDL) or "bad cholesterol" levels.
The first oral chemotherapy drug for colon cancer was approved by FDA in 2001.
Human stomach acid is strong enough to dissolve small pieces of metal such as razor blades or staples.
It is believed that the Incas used anesthesia. Evidence supports the theory that shamans chewed cocoa leaves and drilled holes into the heads of patients (letting evil spirits escape), spitting into the wounds they made. The mixture of cocaine, saliva, and resin numbed the site enough to allow hours of drilling.