Regardless of age, you can always get in better shape. When changes a few things today you will see results soon. Here are some ways to do it
Think about what you eat. . . It does not take a rocket scientist to figure out if eating habits are healthy or not. Start by looking into a diet or just start eating healthier on their own. Many of the popular diets you can find on the weight watchers and Adkins. Stay away from crash diets and programs that require you not to eat. It is very important to eat, but it just depends on what you eat. Instead of eating fried foods, have grilled instead. Small changes can make big improvements.
Stop drinking soda and switch to drinking only water. Most people do not drink enough water. This change alone will definitely start to show results and help with not feeling so slothish. Drinking cokes all day can accumulate more calories then you are going to have a few meals. This means that by drinking water you will have more calories to spend on food. This does not mean you should use calories in candy and chocolate, but more healthy foods.
Join a gym or start a workout program. Even just working out for about 30 minutes one day would lead to some serious changes. It helps if you have a workout partner or someone who will go with you. Sometimes it can be difficult to stick with a program or go to the gym when you are scheduled to go, but if you have a friend to go with you or an accountability partner it can make it much easier.