Increasing stress levels in healthy ways can improve concentration and performance. Deliberate cold exposure, such as taking cold showers or getting into ice baths, greatly increases dopamine and epinephrine levels in the brain and blood. This not only supports immune system function and mood, but also enhances concentration and focus. Cold water exposure has been used since medieval times to spike epinephrine levels and consolidate memories. Overall, if you want to improve focus and concentration, increasing adrenaline levels through cold water exposure is one of the most efficient ways to do so.

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