Hormesis

Box breathing is a paced breathing technique. You use four equal-length phases: inhale, hold, exhale, and hold (commonly four seconds each). Slowing your breathing well below the…

Cold exposure is the deliberate use of cold air, water, or ice as a hormetic stressor. Think cold showers, ice baths, or cryotherapy. Acute cold triggers a release of…

Cold thermogenesis is how your body makes heat when it gets cold. It comes in two forms. One is shivering, where your muscles generate heat. The other is non-shivering, driven by…

The heat shock response is a conserved cellular program. It is triggered by high temperature and other 'proteotoxic' stresses (things that damage proteins). A master switch, heat…

Hyperbaric oxygen therapy (HBOT) delivers 100% oxygen at high pressure. The pressure is typically 2.0 to 2.4 times normal atmospheric pressure (the clinical threshold for HBOT is…

Hypoxia training deliberately exposes your body to less oxygen. It can be steady (altitude, hypoxic tents) or in on-off cycles (intermittent hypoxia). The reported payoff: it…

Ischemic preconditioning (IPC) is a hormetic trick. Brief, non-lethal cycles of cutting off a tissue's oxygen, then restoring it, protect that tissue against a later, lethal loss…

Mitohormesis is the idea that a little stress from your mitochondria can make you healthier. The stress here is a brief, mild burst of reactive oxygen species (ROS), like…

Photobiomodulation, often called red light therapy, shines low-level red and near-infrared light on tissue. Most clinical devices use about 600 to 900 nm. Some research extends…

Pulsed electromagnetic field therapy (PEMF) sends low-frequency, low-strength pulsed magnetic fields into your tissue. It usually works through a flat coil, at frequencies from 1…

A Finnish sauna is a dry-heat bath, typically 80 to 100°C with low humidity, used as a passive heat-stress tool. An acute session raises your core temperature and produces a…

Whole-body cryotherapy (WBC) blasts your body with extreme cold air, typically −100 to −140°C, for 2 to 4 minutes in a chamber. That is different from cold-water immersion (CWI),…

The Wim Hof method mixes three things. First, cycles of fast, deep breathing (like hyperventilation). Second, breath holds. Third, gradual cold exposure. The Dutch athlete Wim…

Xenohormesis is the idea that animals gain from the stress-response molecules made by stressed plants and microbes. You sense these molecules as cues that the environment is…