From a discharge summary:
"Patient is a 37-year-old middle-aged man..."
I was horrified to read that! 37 is NOT middle-aged!
Although then I told this to my husband and he argued that 37 very well might be the middle of your life. And it's almost definitely the middle of your productive life.
But I also feel like for someone with a career that requires education, the 40s should be the peak of your career. And as someone who is nearing that point, it's a lot of pressure. Maybe it would be better to be middle-aged now...