Mood Booster

 https://www.bbc.com/worklife/article/20200228-the-danish-trick-to-shock-your-body-into-happiness 

Many Scandinavians swear by winter swimming, saying that it serves as a mood booster during the long, dark winters. Though science is scarce, enthusiasts say cold water swimming not only heightens happiness but it fosters a sense of community.

“Denmark can be really miserable from November to April. There is hardly any daylight and we often have weeks without seeing the sun. A lot of people (myself included) suffer from mild winter depression,” says Møller, who believes a winter swim can help alleviate winter blues.

“When you throw yourself into the cold water and then into a boiling sauna, it gives you energy and an enormous endorphin kick.”