Study: 'Hasslers' in Your Life Can Make You Age Faster by 9 Months

• A study found that "hasslers" – people who make life difficult in one's social network – can accelerate biological aging.
• Each additional hassler is linked to approximately 1.5 percent faster aging and a nine-month older biological age.
• The aging effects were especially pronounced when the hassler was a family member.
• Women, daily smokers, people in poorer health, and those with adverse childhood experiences are more likely to report having hasslers.
• Negative social ties act as "chronic stressors," influencing gene expression and inflammation, according to findings published in PNAS.