Adults aged 60 and older who spend more time engaging in sedentary behaviors like sitting while watching TV or driving may be at increased risk of developing dementia, according to a new study. Their study showed the risk of dementia significantly increases among adults who spend over 10 hours a day engaging in sedentary behaviors like sitting—a notable finding considering the average American is sedentary for about 9.5 hours each day. The study also revealed the way sedentary behavior is accumulated over the course of the day didn't matter as much as the total time spent sedentary each day. As...