I have been doing the Wim Hof method (cold showers, breathing exercise) for two weeks and it surprisingly effective in alleviating anxiety and depression. I also feel more awake.
For context, supposedly there have been done a couple of studies [1] that show benefits for strengthening the immune system.
For context, supposedly there have been done a couple of studies [1] that show benefits for strengthening the immune system.
[1] https://www.wimhofmethod.com/science