Stretching is a form of physical exercise in which a specific muscle or tendon is deliberately expanded and flexed in order to improve the muscle's felt elasticity and achieve comfortable muscle tone. The result is a feeling of increased muscle control, flexibility, and range of motion. Stretching is also used therapeutically to alleviate cramps and to improve function in daily activities by increasing range of motion.
Samira Mustafaeva, Russian rhythmic gymnast
A stretching Siberian tiger
Football player Luis Suárez stretching prior to a match.
Martin Brodeur stretching during warmups.
Exercise is physical activity that enhances or maintains fitness and overall health. It is performed for various reasons, including weight loss or maintenance, to aid growth and improve strength, develop muscles and the cardiovascular system, hone athletic skills, improve health, or simply for enjoyment. Many individuals choose to exercise outdoors where they can congregate in groups, socialize, and improve well-being as well as mental health.
Cycling is a popular form of exercise.
Weight training
Exercise affects many organs
Central (cardiovascular) and peripheral (skeletal muscle) adaptations to exercise training