It's human nature to lead a sedentary  lifestyle and most of us are so involved in our busy schedules that we don't even notice our bad habits.  Many worry about the right time or "right age" to start working out. But it's never too late to start exercising and all you need is enough determination. Here're some practical tips to help you get fit.  Master your mind--most people argue that they're too tired or old to start exercising. Doing so is much easier than trying to change the busy lifestyle. Change your mindset and be more confident in improving your health. Tell your body to be more active and say, "I can do it." Easy does it--once you have chosen a fitness program, start slowly and increase it in stages. Begin with just a few minutes of gentle exercises and stretches. Go next to some mild activity such as walking, jogging or cycling. About 30 minutes should be devoted to your workout. As your body starts to respond and your muscles get used to the exercises, you can gradually increase the length of your workout.  Don't overload your body--there's no quick access to getting fit. It's a common mistake to do too much too soon. If you don't know how to balance your needs and your expectations, you might seriously injure your muscles or just create stress.  _ -- always remember to warm up your muscles before exercising. Gentle warm-ups will reduce your risk of injury, aches and pains, and increase blood circulation  and flexibility.  Cool down--when you finish your routine, you need to cool your muscles and let your heart rate slow gradually. Cooling down will help your body to return to its pre-exercise level. The passage is mainly about   _  .
the ways to do exercises how to get physical what to do with workout the reasons to work out
Question: It's human nature to lead a sedentary  lifestyle and most of us are so involved in our busy schedules that we don't even notice our bad habits.  Many worry about the right time or "right age" to start working out. But it's never too late to start exercising and all you need is enough determination. Here're some practical tips to help you get fit.  Master your mind--most people argue that they're too tired or old to start exercising. Doing so is much easier than trying to change the busy lifestyle. Change your mindset and be more confident in improving your health. Tell your body to be more active and say, "I can do it." Easy does it--once you have chosen a fitness program, start slowly and increase it in stages. Begin with just a few minutes of gentle exercises and stretches. Go next to some mild activity such as walking, jogging or cycling. About 30 minutes should be devoted to your workout. As your body starts to respond and your muscles get used to the exercises, you can gradually increase the length of your workout.  Don't overload your body--there's no quick access to getting fit. It's a common mistake to do too much too soon. If you don't know how to balance your needs and your expectations, you might seriously injure your muscles or just create stress.  _ -- always remember to warm up your muscles before exercising. Gentle warm-ups will reduce your risk of injury, aches and pains, and increase blood circulation  and flexibility.  Cool down--when you finish your routine, you need to cool your muscles and let your heart rate slow gradually. Cooling down will help your body to return to its pre-exercise level. The passage is mainly about   _  .
A. the ways to do exercises
B. how to get physical
C. what to do with workout
D. the reasons to work out
Answer: