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Researchers say how much TV you watch affects how you age, and swapping the couch for physical activity can help move you in the right direction.  

The study published in “Jama Network Open” followed the activity levels of 45,000 people age 50 or older who did not have a chronic disease. It showed each additional two-hour period of sitting to watch TV resulted in a 12% decrease in the chances of aging in a healthy way, which is defined as no major chronic disease, no memory impairment and good physical and mental health.

Adding two hours of light physical activity at work resulted in a 6% increase in the possibility of healthy aging. Researchers say to add in movement whenever you can, like trading your desk at work for a …