The benefits of exercise extend from weight management, to better mental health, to increased brain function, to sleeping better, to longevity. The idea that exercise can help you live an active, healthy life for most of your life--way into your 60s, 70s and even 80s is a great reason to add it to your daily routine.
Maybe it’s time for you to reconsider why exercise is important for you be it mental, physical, or long term. Once you have a reason, do it! Stick with it. Make that decision every day. Make it a priority. Taking care of you will help you take care of everyone and everything else on you plate. And more importantly it will stand as an example that others can do the same.