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b'In this episode, my guest is Susanna S\\xf8berg, PhD. She earned her doctoral degree at the University of Copenhagen in Denmark, researching the effects of deliberate cold and deliberate heat exposure on metabolism and other aspects of human physiology. We discuss how cold or sauna can improve metabolism, cardiovascular and brain health, balance hormones, and decrease inflammation. Dr. S\\xf8berg discusses how deliberate cold protocols can improve glucose metabolism and insulin sensitivity and trigger release of neurotransmitters like dopamine and norepinephrine which enhance energy, mood, and focus. We compare cold showers and cold immersion, traditional and infrared saunas, and other variables. This episode provides actionable tools and answers to common questions about the use of deliberate cold and heat to improve health.\\nFor the full show notes, visit hubermanlab.com.\\nThank you to our sponsors\\nAG1 (Athletic Greens): https://athleticgreens.com/huberman\\nPlunge: https://plunge.com/huberman\\nLMNT: https://drinklmnt.com/huberman\\nWaking Up: https://www.wakingup.com/huberman\\nMomentous: https://www.livemomentous.com/huberman\\nThe Brain Body Contract\\nTickets: https://hubermanlab.com/tour\\nTimestamps\\n(00:00:00) Dr. Susanna S\\xf8berg\\n(00:03:39) Sponsors: Plunge, LMNT & Waking Up\\n(00:06:49) The Brain-Body Contract\\n(00:07:40) Physiology in Uncomfortably Cold Environments\\n(00:12:05) Tool: Water Temperature, \\u201cCold Shock\\u201d & Discomfort\\n(00:17:37) Cold Showers vs. Immersion in Water, Brown Fat\\n(00:22:11) Cold Receptors, Brown Fat & Temperature Homeostasis\\n(00:25:22) Shiver, \\u201cAfter Drop\\u201d, Healthy Stress\\n(00:31:08) Long-Term Health Benefits of Deliberate Cold Exposure\\n(00:31:51) Sponsor: AG1\\n(00:37:02) Blood Pressure & Heath\\n(00:38:26) Brown Fat, Insulin Sensitivity & Metabolism\\n(00:45:07) Temperature Regulation, Brown Fat vs. White Fat\\n(00:52:26) Cold Resilience, Scandinavia\\n(01:00:16) Winter Swimmers & Brown Fat; Discomfort\\n(01:10:28) Sex differences & Brown Fat, Cold-Adapted\\n(01:15:21) Diving Reflex & Parasympathetic Activation\\n(01:18:44) Tool: Deliberate Cold & Sauna Protocol\\n(01:23:11) Winter Swimmers, Shiver; Circadian Rhythm & Brown Fat\\n(01:31:14) Tool: Minimum Threshold for Cold & Heat; Sauna & Cardiovascular Health\\n(01:35:19) Tool: Maintaining Stimulus when Cold-Adapted; Shorter Sessions\\n(01:38:09) Cold Exposure, Sleep Quality, Clothing\\n(01:47:37) \\u201cBrown Fat Negative\\u201d & Shiver\\n(01:52:13) Cold & Heat, Inflammation Reduction\\n(01:55:40) Tool: \\u201cSoberg Principle\\u201d: End on Cold, Metabolism\\n(01:59:39) Cold Exposure: Fed or Fasted?\\n(02:00:32) Raynaud\\u2019s Syndrome; Hand/Feet Protection in Cold\\n(02:05:21) Tool: Headache & Cold Exposure; Head Submersion & Head Coverings\\n(02:11:29) Children & Hypothermia Risk\\n(02:17:16) Gender Differences & Cold Exposure\\n(02:19:57) Tool: Brief, Repeated Temperature Changes; Circadian Rhythm & Temperature\\n(2:27:53) Zero-Cost Support, YouTube Feedback, Spotify & Apple Reviews, Sponsors, Momentous, Social Media, Neural Network Newsletter\\nTitle Card Photo Credit: Mike Blabac\\nDisclaimer'