Stig Severinsen

Stig Severinsen is a Danish freediver, born in 1973, who has been world freediving champion four times and has held several Guinness World Records. He holds a degree in biology and a doctorate in medicine, played underwater rugby for the Danish national team and underwater hockey for the Spanish national team while studying in Barcelona, and then turned to long breath holds. In 2010 he swam 72 meters under ice in swimming trunks, and in 2012 he was credited with holding his breath voluntarily for 22 minutes, a mark that stood until 2016. In 2013 he set two records for the longest swim under ice on a single breath in Greenland, and in 2020 he returned from retirement to swim 202 meters in Mexico. He also founded the Breatheology breathing training platform and wrote a book of the same name.