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Did you know?

Hypertension is a silent killer because it is deadly and has no significant early symptoms. The danger from hypertension is the extra load on the heart, which can lead to hypertensive heart disease and kidney damage. This occurs without any major symptoms until the high blood pressure becomes extreme. Regular blood pressure checks are an important method of catching hypertension before it can kill you.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

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Stevens-Johnson syndrome and Toxic Epidermal Necrolysis syndrome are life-threatening reactions that can result in death. Complications include permanent blindness, dry-eye syndrome, lung damage, photophobia, asthma, chronic obstructive pulmonary disease, permanent loss of nail beds, scarring of mucous membranes, arthritis, and chronic fatigue syndrome. Many patients' pores scar shut, causing them to retain heat.

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Street names for barbiturates include reds, red devils, yellow jackets, blue heavens, Christmas trees, and rainbows. They are commonly referred to as downers.

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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

Ryuthela secundaria, a member of the Liphistiidae Ryuthela secundaria, a member of the Liphistiidae
Joseph Moore and His Family (1839), by Erastus Salisbury Field, reflects the emerging middle-class f Joseph Moore and His Family (1839), by Erastus Salisbury Field, reflects the emerging middle-class f
Good computer skills are now required to be a successful member of an office staff. Good computer skills are now required to be a successful member of an office staff.
Taking an interesting course can help keep your brain active. These seniors are taking a class in ... Taking an interesting course can help keep your brain active. These seniors are taking a class in ...
Immunoglobulin Class (3–11) Immunoglobulin Class (3–11)
Composition of Functions Composition of Functions
Video: Arthritis

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