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In the United States, an estimated 50 million unnecessary antibiotics are prescribed for viral respiratory infections.
The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.
Drug-induced pharmacodynamic effects manifested in older adults include drug-induced renal toxicity, which can be a major factor when these adults are experiencing other kidney problems.
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.
Organisms exhibit a diversity of behaviours, which include (clockwise from upper left), foraging and
Running time on 100-meter sprint for men and women master athletes increases with age. Source: Korho



