Which one is NOT a benefit of flexibility?

Flexibility refers to the ability of muscles and joints to move through their full range of motion. One of the key benefits of flexibility is its impact on various physical and mental aspects of health. Improved blood circulation is closely associated with flexibility as it allows for better movement of blood through veins and arteries, thereby delivering oxygen and nutrients more effectively to muscles.

Relieving emotional tension is another benefit, as stretching and flexibility exercises can increase the release of endorphins, contributing to reduced stress and improved mood. Furthermore, having greater flexibility can dramatically decrease the chances of injury during exercise by allowing for a wider range of movement, which can help accommodate sudden movements and reduce the risk of strains or sprains.

In contrast, while good flexibility aids blood circulation, it does not directly improve air circulation. Air circulation primarily involves respiratory efficiency and lung capacity, which are not directly influenced by flexibility exercises. Therefore, the statement that flexibility helps improve air circulation does not represent a benefit of flexibility training.