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Vitamin D Supplementation Found to Reduce Mortality in the Elderly Summary: In a meta-analysis of prospective, population-based, cohort studies, researchers found that an increase in vitamin D levels was associated with a lower mortality rate in the general elderly population. Review and meta-analysis followed studies (n=12) involving elderly participants (n=32,142) whose vitamin D levels were measured.

Smokers Die About a Decade Earlier on Average Jan. 23, 2013 -- Women who smoke are now just as likely to die of lung cancer and other smoking-related diseases as men -- and smokers of both sexes die, on average, about a decade earlier than non-smokers.

Smoking Can Cut 10 Years Off a Woman's Life Study of Female Smoking Highlights the Benefits of Quitting Oct. 26, 2012 -- Smoking cigarettes can shave 10 years off of a woman's life, a large new study shows.

Sitting Too Much May Shave Years Off Our Lives Sitting Less Than 3 Hours a Day May Add 2 Years on to Our Lives July 9, 2012 -- Sitting too much is a serious health threat, a new study suggests. But keeping "down time" to less than three hours a day might make us live an extra two years.

Breastfeeding Fights Obesity 1% Change in Weight for Each 6 Months of Breastfeeding July 10, 2012 -- Breastfeeding may help women keep their weight in check and make them less likely to become obese as they get older.

Healthy Living in Old Age Can Add Years to Life Staying Physically Active, Socially Engaged Improves Longevity Aug. 30, 2012 -- Following a healthy lifestyle can lead to a longer life, even among people who are already well into their 70s, new research shows.

SUMMARY AND BACKGROUND "A good night of sleep is as important as eating a healthy diet and regular exercise." 3 - Frank Hu "We don't think of [reducing sleep] as increasing our risk of cardiovascular, accidents and motor vehicle crashes, and potentially increasing the risk of metabolic disorders that lead to diabetes.