“A healthy and fit body would then slow aging because the cells are rejuvenated often leading to wellness. When body cells are properly nourished, they live longer, preventing slow aging. Bear in mind, though, that a healthy mind promotes a healthy body.”
“Think positively and your body would also respond positively. In the end, it is how you think that would greatly influence how your body responds. A mind that is happy would slow aging by several milliseconds, so, clear the clutter from your mind and be optimistic at all times.” — The Brain; Can a Healthy Train of Thought Slow Aging?