The amount of exercise you should do depends on your age, fitness level, and health goals. Adults aged 18-64 should aim for at least 150 minutes of moderate-intensity aerobic activity or 75 minutes of vigorous-intensity aerobic activity per week, along with muscle-strengthening activities on two or more days a week. Older adults, aged 65 and above, should follow similar guidelines but may need to adjust based on their abilities and health conditions. It’s essential to find a balance that works for you and consult with a healthcare professional if you’re unsure.