Cold plunge may help your cells fight stress, new research shows

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Los Angeles – Cold plunge's popularity is rising rapidly, with claims ranging from muscle recovery to mental clarity. Now, the new science is backing up at least some of the hype at the cellular level.

A team of researchers at the University of Ottawa found that repeated exposure to cold water can improve the body's cellular response to stress, prevent disease and slow the aging process.

Their research Focuses on the body's natural processes and apoptosis, or programmed cell death, to eliminate malfunctioning cells.

What happens to your cells in the cold?

Backstory:

The study conducted at the Human and Environmental Physiology Research Unit (HEPRU) involved 10 healthy young men who underwent cold water immersion for 1 hour at 14°C (57.2°F) for seven consecutive days. Blood samples taken before and after the session revealed dramatic changes in cell behavior.

Initially, severe cold seemed to impair autophagy. However, after consistent exposure, cells began to show less signs of enhanced autophagic activity and damage.

“We were surprised to see how quickly our bodies adapted,” said Kelly King, a postdoctoral researcher who was the lead author of the study. “It's like tuning your body's microscope machine.”

Why cold plunges may be more than trending

Why should you care:

According to Professor Glenn Kenney, who co-authored the study and leads Utawa labs, these results suggest that cold adaptation could be an important tool for building resilience, not just for athletes but for those facing environmental stress and health risks.

“This strengthening can help cells better manage stress and have important implications for health and longevity,” Kenny said.

File – After plunging into a “pool” carved from the ice at Lake Harriet in Minneapolis, Minnesota on January 30, 2021, members of the “Sapp Major” group emerged from 37.4°F (3°C) water. (Photo by Kerem Yucel/AFP via Getty Images)

Improved autophagy function is associated with everything from reducing inflammation to preventing age-related diseases. The findings provide promising clues as to how regular cold exposure can protect your health at the most basic biological level.

Who does this apply to (and who doesn't – yes)

What you can do:

This study was conducted only in young adult men. It remains unclear whether the same cell benefits occur in women, elderly people, or people with certain health conditions.

Further research is needed to determine optimal exposure times, temperatures, and long-term effects. The researchers also emphasized the need to approach cold plunges with attention and awareness of individual health risks.

sauce: The report is based on new research by researchers at the University of Ottawa's Human and Environmental Physiology Research Unit (HEPRU), led by postdoctoral researchers Kelly King and Professor Glenn Kenney. Their peer-reviewed studies analyzed the effects of repeated cold water exposure on cell stress responses in young male participants. The statement was provided by the University of Ottawa and the findings have been published.

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