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Final lunar eclipse of 2010 set for early morning of December 21

Skygazers hoping to catch the last lunar eclipse of 2010 on Tuesday morning best be ready to stay up late (or wake up very early) to watch the full moon as it goes through a range of dramatic color changes. The December 21 lunar eclipse is expected to last about three-and-a-half hours from its start as a partial eclipse at 1:33 a.m. ET to its finish at 5:01 a.m. ET, according to NASA. The previous lunar eclipse occurred June 26 . During a lunar eclipse, the moon, the Earth, and the sun align so that the sun's rays are shielded from the moon. An eclipse of the moon can only take place if the moon is full, and only if the moon passes through some portion of Earth's shadow, which is composed of two cone-shaped parts, one nested inside the other. The start of the total eclipse is expected around 2:41 a.m, when the entire moon passes through the Earth's umbra, or inner shadow, which blocks all direct sunlight from reaching the moon. The moon will tak...

Men With Breast Cancer Face Worse Prognosis

Men who are diagnosed with breast cancer are more likely than female patients to die in the next 15 years, researchers report. "This may be due to a difference in tumor characteristics and treatment," says study leader Hui Miao, a PhD candidate at the National University of Singapore. Male breast cancer is rare, accounting for less than 1% of all breast cancers in the U.S. Given its scarcity, few studies have assessed its prognosis "and we know of no recent studies looking at trends in survival," Miao tells WebMD. So Miao and colleagues studied 459,846 women and 2,664 men diagnosed with breast cancer in Denmark, Finland, Switzerland, Norway, Singapore, and Sweden between 1970 and 2007. Among the findings, presented at the San Antonio Breast Cancer Symposium: Men were diagnosed at an older age: 69 vs. 61 for women. Twice as many men had later stage III or IV disease: 18% vs. 9% of women. Only 25% of men were alive 15 years after diagnosis, compared with 44...

Permitted non-hormonal performance-enhancing substances

What? Performance enhancers? For decades athletes and non-athletes have been using performance-enhancing drugs/supplements> However most of the time the news flash comes when a competitive athlete is caught using banned hormonal & non-hormonal substances. They can be broadly classified as: Stimulants Prescription medications Blood buffers Nutritional supplements Energy beverages STIMULANTS They are both physical and cognitive performance enhancers. Beneficial effects include increase in: Energy level, Endurance, Anaerobic performance, r Reaction time, Concentration, and alertness. Adverse effects include Headache, Nausea, Insomnia, Anxiety, Tremor, Agitation, Panic attacks, Hypertension, and tachycardia. Rarely, stimulants may cause myocardial ischemia, stroke, psychosis, heatstroke, or rhabdomyolysis. While many stimulants (eg, methylhexana...

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