The 6-6-6 walking challenge: worth trying or overhyped?
Fitness challenges come and go, but the 6-6-6 walking challenge has stuck around long enough to warrant a closer look. The premise is simple: walk briskly for 60 minutes, including a six-minute warm-up and cooldown, at either 6 a.m. or 6 p.m., six days a week. Advocates say the routine builds endurance, supports heart health […]