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Author Question: Sleep researchers have identified ________ levels or stages of non-REM sleep. (Read 50 times) |
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.
Bacteria have flourished on the earth for over three billion years. They were the first life forms on the planet.
Between 1999 and 2012, American adults with high total cholesterol decreased from 18.3% to 12.9%
Your heart beats over 36 million times a year.
The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.