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Author Question: A deepening of the voice in boys usually occurs a. before the start of the growth spurt. b. at ... (Read 55 times) |
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
Your skin wrinkles if you stay in the bathtub a long time because the outermost layer of skin (which consists of dead keratin) swells when it absorbs water. It is tightly attached to the skin below it, so it compensates for the increased area by wrinkling. This happens to the hands and feet because they have the thickest layer of dead keratin cells.
Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
The calories found in one piece of cherry cheesecake could light a 60-watt light bulb for 1.5 hours.
About 3% of all pregnant women will give birth to twins, which is an increase in rate of nearly 60% since the early 1980s.