About the Author

ERIK

BERGGREN

Viking by birth. American by calling.

He grew up at the base of a mountain in northern Sweden, in a world built on cold, endurance, and the quiet pride of people who do hard things without making a fuss about it. The sauna was as natural as breakfast. The cold was not something you avoided. You simply went outside. He carries that with him everywhere he goes, and he always will. When Sweden lines up at the start of a ski race or skates onto the ice at a World Championship, he still bleeds yellow and blue. That part does not change with a passport.

He served in combat with the Swedish Navy at nineteen. Competed in mountain biking at World Cup level. Graduated top of his class in Advanced Finance from Uppsala University. Spent three decades building, buying, and scaling more than thirty companies across Europe and the United States — including an eight-figure AI deal with one of the world's top three technology companies.

"The culture forged me. It also constrained me. I understood early that my spirit was built for somewhere else — not in rejection of where I came from, but in recognition that the specific hunger I carried needed different soil to grow in."

A Book by Erik Berggren

SAUNA LIKE

A VIKING

IN THE QUEST TO LIVE TO A HUNDRED

What if one of the most powerful tools for living longer, thinking clearer, recovering faster, and feeling stronger has been hiding in plain sight for centuries?

  • The science-backed benefits of sauna and cold plunge therapy

  • How heat and cold exposure support longevity and cardiovascular health

  • Simple sauna protocols for recovery, performance, and stress reduction

  • Why Nordic cultures treat sauna as a foundational health practice

  • How to combine cardio training, recovery, and resilience for long-term vitality

  • The role of discipline, discomfort, and adaptation in living a stronger life

  • Practical routines you can implement regardless of age or fitness leve

For generations, Nordic cultures have embraced sauna and cold exposure as a way of life — building resilience, improving health, and extending vitality deep into old age. In Sauna Like A Viking, Erik Berggren combines ancient tradition with modern longevity science to show how heat, cold, movement, and recovery can dramatically improve the way you age.

Whether you're an athlete, wellness enthusiast, biohacker, or simply someone who wants to feel better and live longer, Sauna Like A Viking offers a straightforward roadmap rooted in both tradition and evidence.

You don't need extreme routines or complicated systems to improve your future health. Sometimes the answer starts with heat, cold, and the willingness to embrace discomfort — like a Viking.

© 2026 Erik Berggren. All rights reserved.