I've mentioned seasonal affective disorder, but the **** is real: its prevalence in the U.S. ranges from 1.4% in Florida to 9.9% in Alaska. It's therefore hardly surprising that I was feeling much better when I was in Egypt and Florida. To think, how much worse would it be if I were in Alaska? Interestingly, I decided about 1-2 years ago that if I live long enough to retire, I'll be doing so in Phoenix, though I'd welcome the opportunity if it came sooner. Its weather is fantastic year-round. Sure you'll get a couple of months of insane heat, but it's worth living the rest of the year in bliss. (Temperature is only one factor of weather though.) To put this in perspective, NYC receives only 58% of possible annual sunshine hours and only has 107 clear days per year, compared to Phoenix which receives 85% of possible annual sunshine hours and has 211 clear days per year. I'm sure this can all really take a psychological toll in the long run.