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Did you know?
In 1864, the first barbiturate (barbituric acid) was synthesized.
Did you know?
The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.
Did you know?
In 1844, Charles Goodyear obtained the first patent for a rubber condom.
Did you know?
Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).
Did you know?
Most childhood vaccines are 90–99% effective in preventing disease. Side effects are rarely serious.