Cold Water Boost
Andrew explains how cold water exposure can reliably increase epinephrine levels, leading to improved focus and concentration. The method is cost-effective and can be done through cold showers, baths, or submerging in cold water for 1-5 minutes. The positive effects of epinephrine can last up to an hour or more.In this clip
From this podcast

Huberman Lab
Focus Toolkit: Tools to Improve Your Focus & Concentration | Huberman Lab Podcast #88
Related Questions
How do cold showers affect epinephrine levels?
Is a three-minute cold water immersion effective after strength training as discussed in the Huberman Lab episodes Using Deliberate Cold Exposure for Health and Performance | Huberman Lab Podcast #66 and Cold Exposure Benefits, as well as in the episode Dr. Susanna Søberg: How to Use Cold & Heat Exposure to Improve Your Health?