皇企鹅是唯一在南极大陆沿岸过冬的鸟类，并在冬季繁殖。雄性皇企鹅为了呵护雌企鹅产下的卵，会在随后的两个月或更长时间内不吃不喝，全心尽力用自己的身体给后代取暖。孵卵时，雄企鹅将卵放在两脚的蹼上并用肚皮盖住，在这其间，雄企鹅的体重将减轻11公斤。Penguin（皇企鹅）: A father Emperor...
Pushing Life's LimitsSeptember 29, 2000 John R. Wilmoth, a demographer(人口统计学家) at the University of California, Berkeley, has collected a wealth o...
Alternative medicine growing in popularity 导读：替代治疗在美国变得越来越流行。在接受调查的31000人中，超过 1/3的人用过替代治疗。这些替代疗法包括瑜珈、冥想、草药、特殊饮食甚至祷告。根专家介绍，有些背离传统医学的治疗方法有时也会有副作用。May 28...
Study: Asian Suicide Rate Higher in Women导读：通常，男人比女人的自杀率高得多。但是在亚洲的发展中国家，年轻女性的自杀率远高于男子。她们容易自杀的原因可能是缺少教育、包办婚姻、失恋等。另一方面，这些亚洲女性的自杀方式和西方女性有很大不同，她们更倾向于使用上吊、...
What is Blood Pressure?Blood is carried from the heart to all parts of your body in vessels called arteries. Blood pressure is the force of the blood ...
How do I know when my blood pressure is high?For the most part, you can't tell if you have high blood pressure(通常,你并不知道自已是否患了高血压), and most hypert...
Why is it so difficult to fall asleep when you are overtired? Why is it so difficult to fall asleep when you are overtired?There is no one answer that...
Why Is Canada Shutting Out Doctors?While millions of Canadians can’t find a doctor, thousands of foreign physicians can’t get a licence to...
Can You "Psych" Yourself Into Quitting Smoking?BY CRAIG SEGALIt is all well and good to consider methods for quitting, but hard-core smokers...
Boozing? It's Practically TherapyGoing down the pub could seriously affect men's health—but in a positive way, a study said. A Leeds Uni...