Weakness vs. Sin Part 2

What does "make weak things become strong unto them" look like for those of us who struggle with health and weight issues? And is it really possible? If so, how?

It's Not a Sin to be Weak by Wendy Ulrich: https://www.churchofjesuschrist.org/study/ensign/2015/04/it-isnt-a-sin-to-be-weak?lang=eng