My grandmother was a walker. So was my mother. Both were extremely healthy in their 80’s. In fact both could out walk me.
We all know there are physical health benefits of a good walk. According to the Mayo Clinic, a brisk walk can help maintain a healthy weight, prevent or manage conditions, including heart disease, high blood pressure and type 2 diabetes, strengthen bones, lift your mood and improve balance and coordination. http://www.mayoclinic.com/health/walking/HQ01612
But there is more. Walking can also be a way of quieting our minds and becoming centered.
If you know you should be more active, stop beating yourself up over not finding time to go to the gym. Start where you are and just get moving. A great way to start is to get up and go for a walk.