If you'd asked me before COVID whether I'd be willing to do a twenty-day ice bath challenge in an insulated tub in my garden at the beginning of the year, chances are high that I would have said yes ...

: My bathtub is old and abused and I am tired of listening to my wife complain about it. I would like to replace the tub, but I am a little nervous about taking on a job of this size. The walls of the ...