Briefly Interrupting Prolonged Sitting Beneficial

Do you sit most of the day? A small, randomized crossover study has found that sendentary, non-diabetic, overweight volunteers significantly improved serum glucose and insulin responses to meals when they interrupted their sitting every 20 minutes with 2 minutes of light or moderate walking activity. More research is needed to determine the long-term benefits of brief…

Disturbed Sleep Cycles Can Increase Risk for Heart Disease

Evidence is increasing that night-shift work can raise the risk of cardiovascular disease. In a randomized, crossover trial 30 healthy Austrian physicians submitted to a battery of tests to determine the effects of a prolonged workday on heart rate, blood pressure, cardiac rhythm, and biochemical markers. When compared with routine work days, those with prolonged…