Breathing is one of the most overlooked parts of swim training. But it controls how fast you get tired, how long you can hold your pace, and how efficiently your body uses oxygen. 🔥 Why it matters: Your muscles need oxygen to keep working. When there isn’t enough, they start producing lactic acid, that burning fatigue you feel in your arms and legs. The better your breathing, the more oxygen you deliver and the longer you can swim before your body shuts down. 💡 That’s where hypoxic training co