After yesterday’s post on the effects of exercise on the health of mitochondria, I came across the below video. This guy is 69, has a full head of hair, solid muscle definition, and looks closer to 49 than 69. This video really supports what the experimenters found in mice. Obvious on the surface, but so incredibly important to make this YOUR life. Right now No matter what your age. If you want to live longer, there is nothing better than good old fashioned exercise.