How contrast therapy became 2025’s biggest wellness trend

The hot and cold trend is even moving into people’s homes. Influencer India Cardona installed an ice bath in her London garden last year. “It’s such a luxury having a cold plunge at home,” she tells me. “We use it after a shower and head into our garden in a towelled robe. I’m a fair-weather cold-plunger, whereas my husband goes in rain or shine – he even had to break ice to get in the other day. My favourite occasions are when the sun is shining on your face, you listen to your…