Sports scientists have increasingly recognised the

Position 1: This shift reflects a broader understanding that recovery is as critical to performance as the training stimulus itself.

Position 2: During deep sleep, the body releases growth hormone, which is essential for muscle repair and tissue regeneration after intense training.

Position 3: As a result, elite training programmes now routinely incorporate sleep monitoring alongside conventional metrics such as heart rate and lactate threshold.

Position 4: Sports scientists have increasingly recognised the role of sleep in optimising athletic performance.

Position 5: Insufficient sleep, by contrast, elevates cortisol levels and impairs neuromuscular coordination, raising the risk of both injury and poor decision-making.