As you grow older, it is important to keep yourself moving. Doing regular stretching and exercise daily is a way to keep up the elasticity in your body.
Sometimes at health and wellness centers, there are challenges that you can take part in. Curves has a challenge to go to the gym three times a week and if you lose weight, you may get a prize. This is an excellent way to motivate yourself to keep moving. GoodLife Fitness has a chart you get signed after each workout and you get a ballot after a certain amount of workouts and you could win $1000. Investing in a personal trainer is a good move if you find that you are not motivated enough. Personal trainers love to motivate people.
If you have a smart phone, there are many different walking, exercising, jogging and other forms of exercise applications that you can download and use. Just like a personal motivator in a way.