Cold Water Benefits
Cold showers may not provide the same benefits as full immersion in cold water, but they still contribute to improved health, as evidenced by a study linking daily cold showers to fewer sick days. The key to maximizing the effect lies in controlling your breath, with a recommended duration of about three minutes, including submerging your face. For beginners, starting with a shower or bath can be a manageable way to ease into the experience.In this clip
From this podcast

The mindbodygreen Podcast
415: How cold therapy can supercharge your health | Mark Harper, M.D., Ph.D.
Related Questions
How cold should a shower be and for how long should I stay in to receive the full benefits of cold showers?
When taking a cold shower, how long should I be exposed to the cold water? Should it be for the whole shower or just for a few seconds or 1 or 2 minutes at the beginning of the shower before using hot water?
How cold does a shower have to be to experience the benefits of a cold shower?