Longevity Medicine
Moderate EvidenceCryotherapy, sauna, and hormetic stressors for resilience and longevity.
Dr. Julian Douwes reviews how vagal tone influences anxiety, panic, and autonomic balance — with evidence-backed stimulation techniques, device options, and who benefits most.
Finnish sauna research links regular use to 40–63% lower cardiovascular mortality. Here's what the data shows, optimal protocols, and who should avoid it.
Infrared and Finnish saunas share key benefits but differ in mechanism and heat delivery. A physician compares cardiovascular data, HSP activation, detox claims, and when to choose which.
HRV measures autonomic nervous system health and predicts longevity outcomes. Learn what your HRV score means, how to improve it, and why physicians track it.
Heat shock proteins are the body's emergency repair crew. Learn how sauna, cold, and exercise trigger HSPs and why they matter for longevity and disease prevention.
Hormesis is the biological phenomenon where low-dose stressors trigger adaptive responses that strengthen resilience, slow aging, and extend healthspan. A physician's guide.
A physician's evidence-based breakdown of cold plunge physiology — from norepinephrine spikes to metabolic shifts, and how to dose cold water immersion safely.
Evidence-based vagus nerve exercises you can do at home — diaphragmatic breathing, cold exposure, humming, and why starting slow matters for dysautonomia patients.
Physician analysis of cold showers versus ice baths for brown fat activation, fat loss, and metabolic health. Temperatures, durations, and what the thermogenesis data says.
Physician analysis of sauna frequency for longevity based on the Finnish cohort studies. How often, how long, what temperature, and who should avoid it.
Physician-guided contrast therapy protocol combining sauna and cold plunge. Optimal order, timing, temperatures, and what the cardiovascular evidence shows.
Cold plunge and sauna protocols for healthspan. What the evidence shows about deliberate temperature stress and aging.
