But exercise can counteract it, a new study finds.

Sitting too much during the day has been linked to many diseases, from obesity to heart disease and diabetes and in some cases coming near death experience. So you should understand that being inactive can contribute to obesity and weight gain, which turns up the risk of heart attack and diabetes.

Your body is designed for regular movement, but many Americans spend the bulk of their day sitting still instead. On average, a US adult spends nine to 10 hours each day sitting, which is so much inactivity that even a 30- or 60-minute workout can’t counteract its effects.