Breathing is often the forgotten sixth pillar of strength and performance. Yet how you inhale, exhale, and time your breath affects spinal stability, intra-abdominal pressure, cardiovascular load, recovery, and even endurance. This post explains the physiology behind common breathing strategies used in resistance training and sport, summarizes the evidence for their benefits and risks, and gives practical, research-backed recommendations on how to breathe while exercising in the gym.…