CHARLESTON, S.C. (WCSC) - Many 20 and 30-year-olds say they are feeling twice their age in today’s tech-driven society, and experts say the phenomenon known as “digital aging” is real.

Dr. Sarah Coker, director of psychiatry at Roper St. Francis, said being sedentary can make people feel like they have locked limbs.

“If you think about your posture when you’re holding a phone or a tablet, you’re hunched over. You’re leaning. Or think of sitting at a desk right now. You kind of get complacent for a while, and you’re leaning over,” Coker said. “That all puts strain on you and your back hurts, your neck hurts, and now all of a sudden you used to think you’re kind of spry and move as a 20-year-old - you’re feeling tight and sore.”

Blue light affects sleep and vision

Coker said blue light f

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