Obsessed with fitness hacks? The 6-6-6 walking challenge is blowing up for a reason. It’s just 60 minutes of brisk walking a day (at 6 a.m. or 6 p.m.), with a 6-minute warm-up and cool-down. No fancy gear, no gym needed. People swear it’s helping them sleep better, lose weight, and even live longer. Bonus: you can do it anywhere—sidewalk, treadmill, or park. Who knew getting your steps in could be this simple? #Fitness #WalkingChallenge #FitnessHacks