Mariah Jager is a health and fitness writer and co-author of several books on nutrition and alternative healing. She also works as a certified personal trainer, teaching people how to use nutrition and exercise to live healthier, longer lives.
Want exclusive content, like free chapters, news, and sweepstakes? Register for the newsletter here!
By clicking 'Sign Up,' I acknowledge that I have read and agree to Hachette Book Group’s Privacy Policy
and Terms of Use