What is so surprising about exercise is how much we resist it even though we realize how much we love it when we get into it. I recall how great I felt and how fit I was while working out a lot, but without proper motivation and in allowing excuses to speak loudly and convincingly, I started doing it less and less. Now that I'm getting back into the routine of yoga, I love it.
One of those loud excuses is from the inflammatory connective tissue disease I have called Dermatomyositis which gives me sloppy, inflamed joints and muscles (plus red skin). Plus, I was thrown from a horse and broke my back in several locations in 2004. The way I fell was onto my right side curled up in a ball with my arm wrapped up and around my back. Unfortunately, I healed with my shoulder and hip over-stretched so the don't hold in their socket very well. It will go out at all four points of connection and swell.
So during the initial stages of re-introducing yoga, my shoulder and hips will ache, give-out in poses, swell and hurt significantly. Amazingly, after maybe 3 months of enduring this, it INSTANTLY gets better and stays in place as long as I do yoga routinely.
I choose to go through this journey because the more I move while I'm in my 30s the longer I'll be capable of movement. The energy level I have in my 30s by exercising as I do will sustain me when I'm a senior. I choose to move now because I want the freedom to decide to hike a mountain, run on the beach, stand on my head or climb a tree. I'd rather be capable to do so if I desire rather than desire to do so but be incapable.