Nothing else you can do for yourself has more benefits than regular exercise. Sure, exercise burns calories. And it tones muscles, tightening up arms and chisel your waste line. But there are plenty of other reasons to get up and get moving: 

More energy 

Exercising will make you feel more energetic you fee less tense and tired after breaking a sweat. A brisk 10-minute walk gives more energy than eating a candy bar. How can that be? Exercise boosts a hormone that increases energy. And it doesn't take more than a few workouts before strength and the lungs' capacity to provide oxygen to working muscles improve, increasing stamina which is enough to make anyone feel more energetic.

Less stress

Just one simple workout can ease stress and anxiety. A 20-minute session makes you feel significantly less anxious during an hour or two after the workout. Exercise enhances the stream of brain chemicals, such as serotonin, that are related to positive mood. Because it also increases core body temperature, it can be as relaxing as a good soak in a hot tub. 
A sharper mind
 It is proved that exercise can spark creativity. As after the workout, you'll feel more positive and your creativity is enhanced.

Healthier arteries 

Physical activity boosts levels of high-density lipoproteins, or HDL, the so-called good cholesterol, by as much as 20 percent. HDL helps rid the body of low-density lipoproteins, or LDL, the artery-clogging kind. Also the level of the fat particles in the blood, called triglycerides, falls by as much as 40 percent after a vigorous workout and also reduces the risk of heart disease. As exercising converts triglycerides into fatty acids the form in which fat can be burned for energy. You burn stored fat each and every time you work out the key to keeping weight off. 
Better defenses

 when you exercise your heart starts thumping and your blood pressure surges sending disease-fighting immune cells out into the blood, where they're able to detect cold or flu viruses. You'll have fewer sick days  than your sit-around-and-do-nothing counterparts.