Explain how exercise may improve mental health in seniors
Aging often results in the reduction of the size of the hippocampus, a brain region associated with memory. When that happens, memory decline can occur. The hippocampus begins to decrease in mass by 0.5% each year beginning as early as age 40. Recent studies have shown that regular physical activity, aerobic exercise, and strength-training increase the size of the hippocampus and decrease the rate of brain shrinkage. Maintaining a high level of fitness in mid-life can reduce a person's chances of developing Alzheimer's by 50% and dementia by 60%. Even becoming physically active later in life can produce measureable gains in the weight of the hippocampus after just a few months of training.
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An _____ is any foreign substance that, when introduced into the body, activates the immune system
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Which statement about gonorrhea is true?
A) Gonorrhea is the most prevalent viral STI. B) There is no effective treatment for gonorrhea. C) Gonorrhea is caused by a bacterium that can survive for several hours on objects such as toilet seats. D) Most women with gonorrhea have no symptoms.
A medical term that means pertaining to the kidney is ____________________
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Also known as nearsightedness, ____________________ is a defect in which light rays focus in front of the retina.?
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