Stretching and strengthening are some of the most important things you can do to stay healthy. Along with reducing muscles aches, exercising will improve your sleep, enhance your digestion, and give you more energy.
I use these low-cost videos on a regular basis. The website is a bit wordy which, I think, reflects the earnestness of their mission. Once you’re on their website, just scroll down to get to where you click on the videos that you’re looking for. You can download these to your phone or tablet so that you’ll always have them with you.