Did you know?
Astigmatism is the most common vision problem. It may accompany nearsightedness or farsightedness. It is usually caused by an irregularly shaped cornea, but sometimes it is the result of an irregularly shaped lens. Either type can be corrected by eyeglasses, contact lenses, or refractive surgery.
Did you know?
Tobacco depletes the body of vitamins A, C, and E, which can result in any of the following: dry hair, dry skin, dry eyes, poor growth, night blindness, abscesses, insomnia, fatigue, reproductive system problems, sinusitis, pneumonia, frequent respiratory problems, skin disorders, weight loss, rickets, osteomalacia, nervousness, muscle spasms, leg cramps, extremity numbness, bone malformations, decayed teeth, difficulty in walking, irritability, restlessness, profuse sweating, increased uric acid (gout), joint damage, damaged red blood cells, destruction of nerves, infertility, miscarriage, and many types of cancer.
When horses lie down to sleep, others in the herd remain standing, awake or in a light doze, keeping
Situations Causing Changes in Respiratory Rate
Standing at the side and facing the head, apply shingles effleurage to paraspinal muscles of the ...
Standing at the head of the table, apply oil or lotion to chest area. Spread lubricant fanning out ...
Dorsiflex the foot, applying direct pressure to the bottom. Standing at the end of the table, pick ...
Computer reconstructions of the diversity in neurons that exist across species