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Smoking one cigarette reduces life by 20 minutes

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10.1038/nri2530 Nat

The decrease observed in this study is in agreement with earlier study that also reported a decrease in FSH with nicotine administration.[19] Primary testicular failure and hypothalamic causes have been reported to likely result in primary male infertility due to sexually transmitted diseases, trauma, environmental factors and social habits like smoking and consuming alcohol

The effects of smoking and smoking cessation on mortality from cardiovascular disease among Japanese: pooled analysis of three large-scale cohort studies in Japan