Stig Severinsen, PhD

Guinness Book of World Records Holder - Longest Underwater Breath Hold at 22 Minutes, Freediver

“Training for extreme records under extreme conditions is always a huge challenge. In such situations, it is of great value to be able to perform noninvasive and accurate measurements of my heart rate and oxygen saturation levels with a state-of-the-art device.”


Mammalian Dive Response –
Stig Severinsen lowers heart rate in icy water

Close (esc)


Use this popup to embed a mailing list sign up form. Alternatively use it as a simple call to action with a link to a product or a page.

Age verification

By clicking enter you are verifying that you are old enough to consume alcohol.

Shopping Cart

Your cart is currently empty.
Shop now