Markus Marthaler 🇨🇭• Triathlon • Swimming on Instagram: "How to build endurance in swimming? Building endurance takes patience, as it requires time to develop both the technical skills to improve efficiency and the physical adaptations needed to swim longer distances or durations. While it might be tempting to push harder to speed up progress, this often leads to short-term gains at the expense of long-term improvement. Focus on honing your technique and gradually developing the physical trait