Whether it’s wild swimming in the depths of winter or filling your bathtub with ice at home, cold water therapy is big on the health and wellness scene.

The biohacking technique is a hotly debated one. Attempting cold water therapy as a means to improve your health without nailing the basics first is pointless, says nutritionist and ‘anti-biohacker’ Dr Adrian Chavez. “The cutting edge biohacks don’t work when you’re not sleeping enough, eating well, drinking water and aiming for 30 minutes of daily movement,” he says.

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