The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.
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Russia has the highest death rate from cardiovascular disease followed by the Ukraine, Romania, Hungary, and Poland.
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Acute bronchitis is an inflammation of the breathing tubes (bronchi), which causes increased mucus production and other changes. It is usually caused by bacteria or viruses, can be serious in people who have pulmonary or cardiac diseases, and can lead to pneumonia.
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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.
Herbert Spencer (1820–1903), sometimes called the second founder of sociology, coined the term ...
George Herbert Mead (1863– 1931) is one of the founders of symbolic interactionism, a major ...