A national renown nutritionist and fitness expert has some tips for those that are seeking to remain active through their senior years, new research is suggesting resistance training can help keep you feeling fresh.

Dr. Jim LaValle is the author of 'Cracking the Metabolic Code' and is the clinical director for the Pro Football Hall of Fame Performance Health Program. He explains the science behind what interval training can do to protect these things in the body called telomeres. 

According to Dr. LaValle, resistance training also aids in slowing the aging process by maintaining bone density, and muscle density and just overall increases mood. 

Dr. LaValle continues to stress just moving and simple things like a walk around your neighborhood or finally getting that membership to the local YMCA or gym.

Dr. LaValle wrote a book about blood work and using blood work to better understand where your health is really at. He says just because we look healthy on the exterior isn't always the case underneath.