پاسخ : سيگار كشيدن
کی گفتم پسره؟ :D
http://healthmad.com/health/alcohol-can-raise-life-expectancy/
http://www.examiner.com/article/moderate-alcohol-consumption-can-increase-lifespan
http://www.outsidethebeltway.com/alcohol-may-increase-life-expectency-reduce-risk-of-dementia/
از روی اینا...