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According to a survey by the Centers for Disease Control and Prevention (CDC) out Monday, more and more American adolescents are receiving recommended vaccines.
From astronauts and submariners to miners and rescue workers, people who operate in small enclosed spaces need good air quality to work safely and effectively.
The Los Angeles Times explores some key questions: Will insurers continue to raise premiums; when will the Medicare "doughnut hole" close; and, "how do I sign up for my new insurance?" In answer to the last one, the Times writes, "Although there are some provisions that take effect this year, such as bans on lifetime limits and the denial of coverage to children with pre-existing conditions, the part of the bill that provides new insurance options does not take effect until 2014" (Geiger, 3/28).
The Christian Science Monitor reports that the health overhaul is resting in the GOP's crosshairs. The ultimate defense to the repeal effort is the presidential veto pen. Even with a new majority in the House come January, Republicans concede that winning a repeal vote in the Democratic-controlled Senate is unlikely and the two-thirds needed to override a presidential veto, well out of reach.
Researchers looked at 1,575 adults who averaged 67 years old and had no signs of dementia and had not had a stroke. They were given MRI brain scans and a battery of tests to measure memory and thinking abilities; they also had blood drawn to check the level of docosahexaenoic acid (DHA) or omega-3 fatty acids in their red blood cells. Those with the lowest levels of omega-3s showed signs of accelerated aging. They had lower brain volume, indicating shrinkage comparable to two additional years of aging. Compared with those with the highest blood levels of omega-3s, they scored lower on cognitive tests measuring such things as memory, problem solving, abstract thinking and multi-tasking.
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