Hot cold therapy

Hot and cold therapy can be useful for recovery and pain relief, but the best choice depends on the goal and the individual.

• Heat and cold effects: Heat increases blood flow and can relax muscles. Cold can reduce inflammation and slow nerve firing, which may ease pain. 1
• Contrast therapy: Alternating heat and cold causes blood vessels to constrict and dilate; Huberman described using this approach for recovery and cardiovascular health, with possible benefits for brain health as well. 2
• Weekly exposure: A suggested threshold is 57 minutes of uncomfortable but safe heat and 11 minutes of cold per week. 3
• Immediate soreness relief: Cold-water immersion around 40–50°F for more than 15 minutes was offered as an option for reducing muscle soreness; keep the exposure safe and ease into it. 4
• Individual preference: Responses to contrast therapy vary; some people like it, others do not, so it need not be mandatory. 5