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Cold showers & pranyahama (Wim Hof Method)

In my personal experience, stress was one of the most contributing factor to a cold. If you meditate to reduce stress / balance your mood, that's already a huge step.
Mente sane in corpore sane or something Like that.
gpt
Yeah, meditation and abstinence are good.
Eat plenty of meat and animal fats, get vitamin d3 and k2, drink water and tea for hydration.
Among dairy products, kefir is the best due to its probiotic properties.

>Cold showers & pranyahama (Wim Hof Method)
That too, I love cold showers and cold exposure. I don't do the Wim Hof method, but a Tibetan practice called tummo.
I have never been sick since 2011, so more than a decade now.