What Sitting All Day Does to Your Brain and Body | Keith Diaz | TED (Level 1)

Many people today sit for many hours a day. This is not good for our bodies. It can make us sick, even if we exercise. Our muscles need to move often to stay healthy. Scientists found a simple solution. A short walk every half hour can help a lot. In one study, a five-minute slow walk after eating lowered blood sugar by 60 percent. That is like medicine. In another test, over 20,000 people tried taking short breaks to move. Most of them felt better. They had more energy and could think more clearly. They felt less tired. Even a one-minute walk each hour helped their mood. Our modern world often makes movement difficult. But small changes, like taking the stairs or walking a little more, can make a big difference.