KEEP YOUR FEET FIT TO SUPPORT AN ACTIVE LIFESTYLE I hadn’t seen a podiatrist in years, but last week I visited one about an issue with my toenail. For the past year, the nail on my left big toe had developed a crack down the middle. I kept hoping it would grow out, but it didn’t seem to improve. I even tried using nail glue to seal the crack, which worked for a couple of days before the split reappeared. That’s when I finally arranged to see a foot doctor. After examining my toe, he explained that the nail had...