why you need cardio exercise

Mental benefits. “Aerobic exercise has been shown to increase your confidence, emotional stability, memory, and brain function,” notes Tripps. Studies show that about 19 million Americans experience depression every year. It is widely accepted that aerobic exercise improves the symptoms of depression.
Health benefits. Besides strengthening your heart and lungs, aerobic exercise can help lower your cholesterol, reduce your risk of type 2 diabetes, improve your immune function, and lower your blood pressure.

Physical benefits. Aerobic exercise burns up calories, which can in turn help you shed excess weight. Aerobic exercise also tones your muscles and improves posture.
Fitness benefits. In addition to looking better and being healthier, aerobic exercise increases your stamina, giving you more energy for both work and play. You will sleep better and handle stress better, and you’ll feel better about yourself.