Seth Baetzold loves to swim in cold, even freezing water. “It’s really refreshing,” he says. “You jump in, and it gives you this kind of cold shock.” Baetzold, 28, from Maplewood, has swum in the ...

When temperatures drop in open water, many triathletes will head back to the pool. But that’s a shame, because cold-water swimming has many benefits for our physical and mental health – you just need ...