The study looked at nearly 4,000 people divided into two groups: those whose TV viewing increased over five years and those whose TV viewing remained the same. The researchers then tested the two groups for symptoms of metabolic syndrome.
For reference, Living reports:
„The results showed that increased television viewing does indeed have unhealthy effects.
Both men and women who watched more TV saw their waistlines increase as well. On the other hand, women who watched more TV had higher blood pressure than women who watched the same amount before.
Interestingly, these factors were not affected by exercise. ”