Fit in my 40s: 'The brute fact is, something must be done'

I’m going to do whatever it takes not to decay faster than other peopleI know all about mortality. I’ve known about this stuff for years. When I was young, I went out with a guy who was 20 years older than me, the age I am now. He discussed his health – I don’t know, sometimes a memory is a caricature, but I think it was all day long. It was like listening to Radio 4: the hard talk in the morning (cancer, MS, early-onset dementia); the speculative What If? mid-morning mag