As we age, our bodies change, and we need to be mindful of how much exercise we get daily. For people over 70, the American Heart Association recommends at least 150 minutes (2 hours and 30 minutes) of moderate-intensity aerobic activity every week, in addition to muscle-strengthening activities on two or more days a week. Although it can seem like a lot, it is simple to divide it into weekly sessions of 30 minutes each. There are plenty of ways to get your 150 minutes in, from brisk walking to swimming to cycling. Just be sure to choose an activity you enjoy so you can stick with it. And if you can't commit to 150 minutes per week, remember that every little bit counts - even just 30 minutes of exercise a day can make a difference in your overall health!