The amount of exercise you should do each week depends on a variety of factors, including your age, fitness level, and health status. However, general guidelines from the World Health Organization (WHO) and other health organizations recommend the following:

1. Adults: Adults should aim to do at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise per week, or a combination of both. This can be spread out over the course of the week and doesn’t have to be done all at once. Additionally, adults should also aim to do muscle-strengthening activities at least two days per week that target all major muscle groups.
2. Older adults: Older adults can follow the same guidelines as adults but may also benefit from doing balance and flexibility exercises to help prevent falls.
3. Children and teenagers: Children and teenagers should aim to do at least 60 minutes of moderate- to vigorous-intensity physical activity per day, with at least three days per week of aerobic exercise and three days per week of muscle-strengthening activities.

It’s important to note that these are general guidelines and the amount of exercise that’s right for you may be different. For example, if you have a medical condition, such as heart disease or arthritis, you may need to modify your exercise routine to accommodate your specific needs.

150 minutes of moderate-intensity aerobic exercise or 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise per week, along with muscle-strengthening activities at least two days per week.

In conclusion, to maintain good health, it’s recommended that adults aim to do at least 150 minutes of moderate-intensity aerobic exercise or 75 minutes of vigorous-intensity aerobic exercise per week, along with muscle-strengthening activities at least two days per week. Children and teenagers should aim to do at least 60 minutes of physical activity per day, with a combination of aerobic and muscle-strengthening activities. Your doctor or a physical therapist can help you determine the right amount of exercise for your individual needs.