I have a question about this episode Get Into Ketosis Quick w/ Insulin to Glucagon Balance - Ben Bikman, PhD and this Cold Exposure Benefits How does cold exposure boost immunity?

Cold exposure can boost immunity by triggering the release of molecules like norepinephrine and epinephrine, which are known to enhance immune function in the short term. Repeated cold exposure, practiced over several weeks, can lead to trends in increased immune cell activity, such as heightened levels of T lymphocytes and other immune markers, potentially improving immune system responses 1 2.

It's important to note that while these effects are promising, they are trends rather than highly significant changes, and the actual impact on reducing the risk of illness like colds or flu isn't well-defined in current studies. Additionally, cold exposure must be approached carefully, easing into it to avoid adverse effects and always warming up properly afterwards to support overall health 1 2.