Break bad habits:

If you smoke, try to quit.  Thirty percent of cancer deaths can be attributed to tobacco, and smoking can harm your heart and respiratory system. It’s also linked to a higher risk of age-related macular degeneration and cataracts. Just a year after quitting, though, your added risk of heart disease is half that of a smoker’s, after 15 years, it’s the same as a non smoker.  A decade later, your risk of lethal lung cancer is about half that of a smoker’s.

Skip e-cigs. too.  They may be safer than tobacco, but their long-term health effects are still unknown. And the Food and Drug Administration has warned that some may contain toxic substances such as formaldehyde.

Drink moderately, if at all.   New research suggests that the health benefits of a glass of wine may be overrated. A review of 87 studies published in 2016 in the Journal of Studies on Alcohol and Drugs found that people who have less than a drink per week actually live the longest. If you imbibe, limit yourself to two drinks per day for men and one for women.

Source: Consumer Reports on Health  March 2017