Sleeping colder increases brown fat

Susanna cites studies showing sleeping around 19°C can boost brown fat and improve insulin sensitivity within a month.

Play episode from 24:36

chevron_right

Transcript

chevron_right

Transcript

Episode notes

Cold exposure is not a badge of toughness. It’s a stressor.

And if you do it wrong, you can absolutely overdo it.

In this episode, I’m joined by Dr. Susanna Søberg, PhD, scientist and educator specializing in metabolism, cold and heat exposure, and longevity. We break down what cold exposure is actually doing in the body, why brown fat matters for metabolic health, and how women should think about timing cold exposure around PMS, luteal phase, and menstruation.

Join the most comprehensive *female-specific community for health and longevity optimization.* After over a decade dedicated to human performance and women’s health, I created this space to share everything you need to know to optimize health and lifespan. Inside, you’ll get access to exclusive protocols, live Q&As, the latest female longevity science, and a private, supportive community of like-minded women.

https://kayla-barnes-lentz.circle.so/checkout/become-a-member

In This Conversation:

-Why cold exposure works best when it’s short and strategic

-Brown fat, insulin sensitivity, and why it doesn’t have to be “that cold”

-Cold vs heat for women, and why “better” depends on the outcome

-PMS timing and when to pull back on stressors

-Temperature, time, and the real dose-response of cold exposure

-How to spot viral claims that sound exciting but aren’t science

Connect with Kayla:

Instagram: https://www.instagram.com/kaylabarnes/

TikTok: https://www.tiktok.com/@femalelongevity

Twitter:https://x.com/femalelongevity