A study finds that lifestyle and environment influence health more than genetics. Smoking, income, and exercise shape disease risk.

A range of external factors, including exercise and smoking, was almost 10 times more likely than genetic risk factors to explain premature mortality, scientists from the University of Oxford and Massachusetts General Hospital said in the Nature Medicine journal.

Factors such as exercise, socioeconomic status and diet can have more of an impact on how long you live than your genetics.