On the subject of longevity, a robust, sustainable routine could make a world of distinction. From constructing muscle to sustaining wholesome hormone ranges, Amy Killen, Ph.D., highlights 4 key methods to contemplate—every with choices to tailor to your life-style and targets. Whether or not you’re aiming for small adjustments or a full-on transformation, these science-backed instruments are all about serving to you reside longer and really feel implausible.