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People with high total cholesterol have about two times the risk for heart disease as people with ideal levels.

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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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Hip fractures are the most serious consequences of osteoporosis. The incidence of hip fractures increases with each decade among patients in their 60s to patients in their 90s for both women and men of all populations. Men and women older than 80 years of age show the highest incidence of hip fractures.

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Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

Organisms exhibit a diversity of behaviours, which include (clockwise from upper left), foraging and Organisms exhibit a diversity of behaviours, which include (clockwise from upper left), foraging and
Dental Cavity Dental Cavity
Abdominopelvic cavity. Abdominopelvic cavity.
oral cavity oral cavity
In this design, the fuel injector is at the top of the cylinder and sprays fuel into the cavity of ... In this design, the fuel injector is at the top of the cylinder and sprays fuel into the cavity of ...
The Type of Blood Vessel Injury Often Affects the Nature of the Hemorrhage The Type of Blood Vessel Injury Often Affects the Nature of the Hemorrhage
Video: Cardiac Cycle (Part 1 of 4)

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