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Exposure to Passive Smoke in Childhood Increases the Risk of Lung Cancer Later in Life

Jan 31, 2005

In the very large and ongoing European Prospective Investigation into Cancer and Nutrition (EPIC) a cohort group of 303,020 people who had never smoked or who had stopped smoking for at least 10 years were investigated for the relationship between prior exposure to tobacco smoke and lung cancer risk. A subset of 123,479 people provided information on exposure to second hand smoke. The main outcome measures were people with newly diagnosed cancer of the lung, pharynx, or larynx, or death from chronic obstructive pulmonary disease (COPD) or emphysema. The participants were then followed for more than 7 years. In their analysis the researchers report that second hand smoke raised the risk of lung cancer by 34% and the risk of all respiratory diseases by 30%. The risk was greater for ex smokers than those only exposed to second hand smoke. Individuals exposed to secondhand smoke on a daily basis for several hours during childhood were 3.6 times more likely to develop lung cancer during adulthood. The study is published in the January 28, 2005 early online edition of the British Medical Journal.

Green Tea May Improve Stamina

Ten weeks of supplementation with a Green Tea supplement plus strenuous exercise improved endurance and enhanced performance over non-supplemented rats. The reason the Green Tea Extract worked is because it improved metabolism. Rats given the Green Tea were able to burn fat more efficiently. The Green Tea effect is not from caffeine but is from the Green Tea Polyphenols. The amount needed for a 165-pound athlete to match the results in the study would be 4 cups of Green Tea each day. The study is published in the January 2005 online edition of the American Journal of Physiology: Regulatory, Integrative and Comparative physiology.