You don't have to run, brisk walking works good too.
(This is from Bottom Line's Healing Remedies)
is recommended for people who have a history of heart problems - right before going to bed, take a 10 minute footbath. Step into calf-high water, as hot as you can take it without scalding yourself. As the minutes pass and the water cools add more hot water. After 10 minutes, step out of the tub and dry your feet thoroughly, preferably with a rough towel.