It makes basic sense that if you are physically weak your immune system is not working anything close to 100%. The question is how would strength help?
You don’t have to even consider the complex physiology of such things as cytokines and myokines to get a serious answer. If you want to though watch one our favourite videos posted below. Now consider this simple fact:
When you are stronger everything….absolutely everything is easier. This easing of stress here and there adds up in a powerful way over time. This makes it easier in general for your immune system to work.

It’s that straightforward, a stronger body experiences less of the side-effects of stress. A big reduction in the constant downward drag of stress is exactly what your immunity loves.
See more Dr McGuff:
Be well, be strong,
Andrew and Tierney