There has been discussion and interest in the leak theory winter baths can prolong life. Although it may seem surprising, some studies show an interesting relationship between lifespan, metabolism and exposure to cold. But is it possible to live longer by avoiding the usual winter bathing? Here’s what science has to say about it.
Does temperature really affect longevity?
Research has shown that temperature affects the lifespan of various species. Cold temperatures in humans and invertebrates can reduce metabolic activity, thus reducing DNA damage and oxidative stress. These effects, which are associated with aging, indicate that controlled exposure to cold can potentially extend life.
A 2018 study found that mice with lower body temperatures survived 20% longer. Although the study did not specifically examine human behaviors such as bathing, it helped to better understand how exposure to cold affects physiological responses that affect longevity and aging.
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The role of metabolism in cold conditions
In colder weather, the human body saves energy and slows down metabolism. This change reduces the production of free radicals, which are harmful chemicals associated with aging and cell damage. By reducing oxidative stress, the body may age more slowly, lending weight to the hypothesis that a cool environment may extend life.
However, giving up baths is not directly related to these benefits. The theory is likely based on the finding that exposure to cold, if properly controlled, can increase lifespan. Cold showers, for example, are often recommended for their circulatory and mental health benefits, but they are no substitute for good hygiene.
The influence of hygiene on health
While the cold may have certain benefits, proper cleanliness is essential to overall health. Not taking a bath for a long time can lead to the accumulation of bacteria, increase the risk of skin infections and reduce immunity.
So while temperature regulation has an effect on aging, neglecting hygiene can negate any potential benefits of cold exposure.
Low temperatures activate neuroendocrine mechanisms in the body. These pathways, which include hormones such as norepinephrine, improve the stress response and may contribute to longevity. According to a 2022 study, regulated exposure to cold may strengthen immunity against aging-related diseases such as cardiovascular disease and neurological disorders.
Research shows that planned and controlled exposure to cold, rather than skipping hygiene routines, may be a safer way to achieve the benefits of longevity.
What does this mean for daily winter baths?
The claim that skipping a bath in winter can increase life expectancy by 34% has no direct scientific support. The connection between exposure to cold and longevity exists, but hygiene will always remain an important aspect of health. Instead of avoiding the bath, consider taking a cold shower or spending a short time in a cold place.
