这可不是吓唬人，进来看证据：）

这篇文章基本上有科学证据，下面给你列几个：

http://healthland.time.com/2012/05/29/working-the-night-shift-may-boost-breast-cancer-risk/

http://www.huffingtonpost.com/2012/10/25/night-shift-prostate-cancer-health_n_2003392.html


http://www.cancer.gov/cancertopics/factsheet/Risk/obesity


http://www.care2.com/greenliving/vitamin-deficiency-linked-to-diabetes-autoimmune-disorders-cancer.html

http://www.google.com/search?hl=en&tbo=d&biw=1024&bih=676&noj=1&q=selenium+deficiency+and+cancer&oq=selenium+deficiency+and+cancer&gs_l=tablet-gws.3..0i30.55587.60397.0.62288.16.16.0.0.0.0.140.1335.13j3.16.0.les;..0.0...1ac.1.Fo53LwLaTmE

http://www.foodnavigator.com/Science-Nutrition/Dietary-salt-intake-linked-to-gastric-cancer-risk