“As someone who has climbed mountains, I’ve had to improve the grip on the bottom of a shoe or two,” Michael Sawyer of UltimateKilimanjaro.com says with a laugh. “Just take a rock, nail file or ...

Those who suffer from plantar fasciitis know that there’s no rest for the weary. When your feet hurt, your instinct is to kick ’em up and take a load off—but according to Shine John, D.P.M., F.A.C.F.A ...