Sitting for an extended period of time negatively impacts blood flow. Research has linked sitting for long periods of time with a number of health concerns such as increased blood pressure, high blood sugar, excess body fat around the waist, and abnormal cholesterol levels. Fix that by taking a 5 minute walk break every hour. Walk around your house or go for a stroll around the block. If you are tracking your steps, then this gives you a higher step count by the end of the day.