learn.howToCalculate

learn.whatIsHeading

The Cold Plunge Protocol Calculator estimates the safe duration for cold-water immersion based on water temperature, your experience level, and your goal (recovery, hormesis, or cold-shock alertness). Cold plunging — popularized by Wim Hof and researcher Dr. Andrew Huberman — exposes the body to water typically between 38–55°F (3–13°C) to trigger physiological adaptations including increased norepinephrine, brown adipose tissue activation, and improved recovery from exercise.

공식

T

Water Temperature (°F or °C) — Cold plunge water temp — colder requires shorter duration

D

Duration (minutes) — Time submerged neck-down per session

단계별 가이드

1. 1Enter water temperature in Fahrenheit or Celsius — most home cold plunges run 45–55°F
2. 2Select experience level: beginner (<3 months), intermediate (3–12 months), or advanced (1+ years)
3. 3Choose goal: recovery (post-exercise), hormesis (long-term adaptation), or cold-shock (morning alertness)
4. 4Indicate pregnancy status — pregnant users get a 1-minute safety cap regardless of other inputs
5. 5Calculator computes duration scaled by experience baseline, temperature factor, and goal modifier
6. 6Weekly target follows Dr. Susanna Søberg's research: 11 minutes/week for beginners, up to 20 min for advanced
7. 7Sessions per week derived from weekly target ÷ session duration, clamped between 2–6 per week

풀어진 예시

피해야 할 일반적인 실수

• ✕Going too long too soon — beginners should never exceed 2 minutes regardless of how comfortable they feel
• ✕Plunging at extreme temperatures (<35°F) without supervision — high risk of cold shock response or cardiac event
• ✕Ignoring pregnancy or cardiovascular contraindications — cold immersion is unsafe with uncontrolled hypertension, arrhythmia, or pregnancy without medical clearance
• ✕Plunging immediately after a heavy meal or alcohol — increases cardiac risk

자주 묻는 질문