When was the last time you were sick?

OK, so yes I am bored. But I was just thinking about how it has been years - many years - since I had so much as a cold. When was the last time you were sick? I actually find it kind of odd that after a lifetime of getting at least a cold or something each year, now I get nothing for, like, six years or so. Anyone else never get sick?

I'm idly curious, but also wondering if we can isolate something in common, pinpoint the cause of never getting sick. I don't sleep enough, don't exercise. I do eat well, lots of veggies and organic meats, but I also eat plenty of junk food.