Foot Detox
One recipe I have been shown is to use onion rubs. If you have cracked heels it can help reduce pain. Rather than waste an onion use the ends you wouldn't eat where where a small amount is left. It is enough to massage into your feet. Wear plastic food serving gloves or nitrile to keep the odor off your hands.
Is it effective?
Does it work?
Life Extension
Exercise is one of the keys along with other healthy habits such as natural foods and not smoking. Even if you don't worry about living longer than your time you might find that feeling healthier while you are alive can make your time more enjoyable.