A new study conducted by researchers at Abertay University has found that short six-second intervals of high intensity exercise can lower blood pressure and improve overall fitness in elderly. The study, which only looked at pensioners, had 12 participants go all-out on an exercise bike for six seconds at a time then allowed their heart rate to catch up before putting the pedal to the metal again. Participants saw their blood pressure go down by 9% and found daily tasks, like walking the dog, became easier because of the increase in oxygen to their muscles.