Heat stress (infrared sauna) and cold immersion are forms of hormesis that stimulate the vagus nerve; after infrared sauna exposure followed by a cold shower, heart rate drops rapidly and you feel exhilarated due to vagal activation triggering the repair process and increasing resilience.
causalpending
Speaker
Unidentified Speaker — Vagus Nerve Hacks: Powerful Techniques to Enhance Health an… [irn3cFHmK-Y]Evidence Quote
“infrared sauna...form of stress...the cold shower kicks in and that really stimulates your Vegas and then all of a sudden your heart rate which was up comes down real fast you start feeling so exhilarated...anytime you're stimulating your vagus nerve you're going to get the repair process more resilience”
Source
Vagus Nerve Hacks: Powerful Techniques to Enhance Health and Well-Being— Dr. Pradip Jamnadas, MDCreated: 8/11/2026, 1:38:33 AM
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