You’re running wrong. Every single human on Earth runs the same way. Right arm forward, left leg forward. Twist. Repeat. Edo-era Japan ran the opposite. Same arm, same leg. No twist in the body at all. A man named Katsunori Oba spent 10 years digging through 200-year-old texts to rebuild how the old couriers moved. Those couriers ran 160 km in a single day. No shoes worth the name. No roads. No water stations. He posted one clip of the technique. 13 million views. People watched a forgotten way of moving a human body and couldn’t look away. Turns out the thing we all call “natural” was just a habit Japan threw away 150 years ago.