Ancient roots and global traditions
The biology of heat
The biology of cold
Separating science from hype

lara Traditional wood-fired or electric rooms heat between 80°C and 100°C, earning this vital Finnish custom UNESCO heritage status.

lara Sort sauna and ice bath claims to discover the real science behind the wellness hype.
Ancient Roman baths: Roman bathhouses featured a sequence where bathers moved from the steaming hot caldarium to the unheated, icy frigidarium to stimulate blood circulation.
A room or building heated to a high temperature to induce sweating, used for relaxation and health. In Finland, this practice has existed for over two millennia, historically paired with rolls in the snow.
In what year did UNESCO add Finnish sauna culture to its Intangible Cultural Heritage list?
Approximately how many saunas exist in Finland relative to its population of 5.5 million people?
Which ancient civilization historically used the temazcal for postpartum recovery and treating wounded warriors?
During which historical Japanese period did communal bathing cultures like sento begin to flourish?

