Definition of Hydrotherapy Research Spotlight The databases often return hundreds of medical studies for a single wellness approach. This section summarizes a sampling of five studies – providing just a taste of the available research.  Cold Plunges Produce Cellular Changes, Improving Autophagic Function Linked to Longevity A small 2024 study from the University of Ottawa (ten young males) closely examined how seven days of one-hour cold plunges…