We Biorexin suggest that you get in touch with a health care service provider. If you are over 50, we suggest that you start with the lightest resistance band. Ideally, it's a good idea to choose a 3-pack with a light resistance band. Just don't go for the heaviest band in the beginning or you may hurt yourself in the process. 3. Try 2 3-packs If you have been looking Electro Keto for a light, medium and heavy one for your arms in addition to a looped one for your legs, .