2nd most valuable skill to save O₂: Student : 88ond Streamlining. Most divers focus on breath-hold… but waste oxygen on the way down. If your body isn’t aligned, you create drag. If your arms, head, or legs are out of position, you fight the water instead of moving through it. Every small resistance costs oxygen. Keep everything close to your body. Head neutral. Arms fixed. Hips engaged — not the knees. The goal is simple: become one clean line in the water. Less drag → less effort → less oxygen used. You don’t need more capacity… you need less waste. #freediving #apnea #spearfishing #freedive #freediver