ANDREW HUBERMAN 5 | Study shows SAUNA REDUCES CORTISOL in young men

http://www.DoctorsToTrust.com
presents episode 650 | Dr Andrew Huberman
HubermanLab podcast

What happens when you get into a hot
environment?
-shell senses heat, activates POA:
-activates autonomic nervous system
-blood flow increases
-plasma volume increases
-stroke volume of heart increases
-heart rate increases to 100 to 150 bpm
[looks a lot like cardiovascular exercise]
"In many ways it is cardio exercise...
except loading of joints;
impact on ground to improve bone density"

Your vasculature changes shape to accomodate
these increases in heart rate and blood volume
"Getting a cardio workout while in the heat"
Shifts in hormonal output from adrenals;
ovaries; testes; and brain
Study 2021: on group of young men
-attend 4 sauna sessions; 12 minutes; temp: 90C [194F]
-followed by 6 minute cool down in water 10C [50F]
-checked hormones before, during, after
[testosterone; DHEA; prolactin; cortisol]
Results: significant decrease in cortisol [stress hormone]
[cortisol good in am; troublesome in pm...depression, etc]

"Many suffer from acute & long term stress...
-many people are stressed, overworked
-not able to control their cortisol at healthy level
"So, this protocol [12 min; 4 times; 90C]
followed by 6 minute cool down [10C water]
Had a significant effect on lowering cortisol

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@hubermanlab

Original Youtube: https://youtu.be/EQ3GjpGq5Y8
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