In Finland, daily practices like cold plunges and warm baths have long been embraced for their invigorate restorative effects. Today, science supports these traditions: cold water immersion improves circulation, reduces inflammation, activates brown fat to enhance metabolism, and supports immune health. 

Mentally, it can reduce stress, improve mood, and enhance focus and energy, while also improving sleep by lowering core body temperature. Warm baths help relax muscles and ease tension. Alternating between cold and warm — known as contrast therapy — boosts cardiovascular function and recovery.