Freestyle Breathing
Breath Control – Hypoxic training
If you want to hold your breath for longer while swimming, there is no other way but to practice it in the pool while you’re swimming.
Shoulders and Head Position
Probably the hardest part to dominate when you are a beginner, which is breathing and how it relates to the movements of the shoulders and head. Breathing is probably the most important factor that will make you change from beginner to advanced.