When the north wind quietly sweeps past the window lattice, the chill spreads like a thin mist in every corner of the city, and the atmosphere of winter becomes even more intense. The sky is often grey and the sunlight seems stingy. People wrap themselves tightly in their overcoats and hurry through the cold wind. However, in this cold season, there is a simple yet profound happiness quietly awaiting us - that is, taking a warm bath in the bathtub at home.

When the north wind of the cold winter howls past, the earth is covered with frost and snow. People wrap themselves tightly in cotton-padded clothes and hide in warm rooms, fearing that even a hint of cold might invade their bodies. In such a season, when the three words "ice bathtub" are mentioned, many people would probably gasp in astonishment and even blurt out, "Are you crazy?" However, it is precisely in such a harsh season that there is still a group of people who choose to step into a bathtub filled with ice water and have a dialogue with the extreme cold through their bodies. So, would you dare to use an ice bathtub in winter?