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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.
Always store hazardous household chemicals in their original containers out of reach of children. These include bleach, paint, strippers and products containing turpentine, garden chemicals, oven cleaners, fondue fuels, nail polish, and nail polish remover.
Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.
The first documented use of surgical anesthesia in the United States was in Connecticut in 1844.
Blood in the urine can be a sign of a kidney stone, glomerulonephritis, or other kidney problems.