The sensation is familiar to many—you step into the shower, pour cold water over your head first, and suddenly experience a brief wave of dizziness or lightheadedness. This common reaction has spawned ...

This is read by an automated voice. Please report any issues or inconsistencies here. Cold-water immersion may boost mental health and well-being. The practice carries risks, too, including drowning ...

Dr. Mark Harper recalls his first cold-water swim in the south of England 20 years ago. It was August, but the initial jolt from the plunge took his breath away. The shock to his system lasted a ...