Breathe easilyThey looked at Chronic Obstructive Pulmonary Disease (COPD) which leads to breathlessness, coughing and repeat chest infections. The condition is thought to affect three million people in the UK and includes diseases such as bronchitis and emphysema. By comparing smokers and non-smokers as well as those with the disease and without they discovered sections of our DNA that reduce the risk of COPD. So smokers with "good genes" had a lower risk of COPD than those with "bad genes". 没有常识的是你,如果刚好这个人有强壮的基因,他可以有效的排掉吸烟造成的毒素,不过这样也会消耗他的生命力,有可能会折寿
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