The Overlooked Fitness Trick That Starts With Your Breathing
Most people think endurance begins in the legs or the heart. Runners focus on stronger calves, gym-goers chase stamina, and cyclists push for more power. Yet one of the body’s most important performance muscles is often ignored entirely: the muscles used to breathe.
Scientists are now paying closer attention to how breathing strength affects physical fitness, especially as people grow older. The idea sounds surprisingly simple — train the muscles that help you inhale, and the body may perform better overall.
Known as inspiratory muscle strength training, or IMST, the method involves breathing forcefully through a small handheld device that creates resistance. Imagine trying to inhale through a narrow straw. That extra effort activates muscles such as the diaphragm and the muscles bet...