9 science-backed signs you're smarter than average

9 science-backed signs you're smarter than average, What makes anyone smart? Scientists accept been investigating that catechism for decades, and the analysis suggests that aggregate from your mother's breast milk to the admeasurement of your waistline can access your intelligence.

1. You don't smoke.

A 2010 Israeli abstraction compared the IQ and smoker cachet of 20,000 adolescent men.

As the Daily Mail reported, the after-effects were stark:

* The boilerplate 18- to 21-year smoker had an IQ of 94, and the non-smoker had an IQ of 101.

* Those who smoked added than a backpack a day had an boilerplate IQ of 90.

* In affinity sets, nonsmoking brothers were smarter than smokers.
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