07/14/2022
Lift weights, live longer?
That’s what recent studies suggest.
According to the British Journal of Sports Medicine, an analysis of 16 studies involving people 18 to 98 years of age, found that those who spent 30 to 60 minutes/week in strength training had:
- 40% lower risk of premature death
- 46% lower risk of heart disease
- 28% lower risk of dying from cancer
As the body ages, our muscles lose size and strength. Between 40 & 50 years of age 🙋🏻♀️, the avg. person loses more than 8% of their muscle size.
Dr. Gabe Mirkin breaks it down for us like this: every muscle in your body is made up of thousands of muscle fibers just as a rope is made up of many strands. Every muscle is innervated by a single nerve fiber. With aging we lose nerves, and when we lose a nerve attached to a muscle fiber, that muscle fiber is lost too. Here’s something really eye-opening: a 20-year-old may have 800,000 muscle fibers in the vastus lateralis muscle in the upper leg, but by age 60, that muscle would have only about 250,000 fibers! For a 60-year-old to have the same strength as a 20-year-old, the average muscle fiber needs to be three times as strong.
While we cannot stop the loss of muscle fibers that comes with aging, we can enlarge each muscle fiber AND slow down the loss of strength by lifting weights.
For weight training as part of a total body workout, check out my live online class The Greatest HIIT offered on Saturdays at 9am.