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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In 1864, the first barbiturate (barbituric acid) was synthesized.
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The FDA recognizes 118 routes of administration.
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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).
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Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.
Eye Color Is a Sex-Linked Trait in Drosophila (Part 4)
Order and Duration of Sleep Stages Through a Typical Night