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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.

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About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

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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.

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It is difficult to obtain enough calcium without consuming milk or other dairy foods.

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A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

Total fertility rates (TFRs) among major regions of the world. Total fertility rates (TFRs) among major regions of the world.
Movement of Water in the World Ocean Movement of Water in the World Ocean
Happiness in the world Happiness in the world
Primary School Attendance in World Regions Attending primary school is common but not universal, wo Primary School Attendance in World Regions Attending primary school is common but not universal, wo
Ottoman Empire and the Arab World, 1914 Ottoman Empire and the Arab World, 1914
The world’s longest glass-bottomed bridge The world’s longest glass-bottomed bridge
Video: ACTH/Cortisol (glycogenolysis, protein catabolism, lipolysis and gluconeogenesis)

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