9. Are you Skinny?

Gaining weight affects the smartness of the people, reports an earlier research done by French scientists. It also says that born with over-weight doesn’t matter but obesity.

Dr. Cournot, an Assistant Professor in Clinical Epidemiology at Toulouse University Hospital mentioned that the same as obesity cause the condensing and hardening of the blood vessels, it makes arteries in the brain thicker and harder than before. Dr David Haslam, the clinical director of the National Obesity Forum, mentioned that obesity will influence every single organ in the body.

10. Are you Alcoholics?

According to the National Longitudinal Study of Adolescent Health, Dr. Kanazawa says more intelligent people overdo drink and get drunk more. The study also says that smart people are often worried of worlds’ problems and they frequently spoil their emotional states by thinking over the problems.