the essential
On the morning of New Year 2025, many people dive into an icy sea to strengthen their immune system. How do they succeed without risking hypothermia or thermal shock?
Diving into freezing water on January 1st to start the year? To many, this seems like pure madness. However, New Year’s baths, born in the 19th century in Scandinavian countries, attract more and more fans in France every year. With Santa hats screwed on their heads or unusual costumes, these courageous people take the plunge in a festive atmosphere, ready to defy the cold… and their limits. But how do they hold up?
New Year’s baths are based on a fascinating combination of physiological mechanisms and psychological sensations. When a human body comes into contact with icy water, it triggers what is called the mammalian diving reflex. Blood circulation focuses on vital organs, while heat shock releases adrenaline and endorphins.
Precautions to adopt to avoid risks
Result: a feeling of euphoria and a boost of energy. “Studies have shown that wild swimming can reduce the stress hormone cortisol while increasing serotonin, dopamine and endorphins, associated with feelings of happiness and relaxation, and easing symptoms of anxiety “, explains Katherine Cavallo, British psychotherapist, to Metro.
But this tradition is not without risks. Hypothermia, malaise, thermal shock: diving into freezing water requires certain precautions. Rescuers recommend never entering the water suddenly. First wet your neck, arms and stomach to get the body used to it. Do not stay submerged for too long, and above all, ban alcohol before swimming. Bring a sweet drink and warm clothes for the outing.
Swiss
