From my experience as a runner, tackling the feeling of heavy legs often comes down to refining the little details in your running form rather than just pushing harder. One crucial aspect I've found is to focus on landing your feet softly rather than pounding the ground. When I started concentrating on a quick, light foot strike, it felt like I was almost bouncing off the surface rather than dragging my feet—this made a huge difference in reducing fatigue. Another helpful tip is to pay attention to your upper body, especially your arms and shoulders. Many runners unknowingly tense up their arms, which can transfer tension to the legs and cause wasted energy. Relaxing your shoulders and allowing your arms to swing smoothly creates a natural rhythm that your legs will follow, promoting better efficiency. Finally, avoid overreaching with your stride. I used to think that longer strides meant faster speed, but overextending actually made me land heel-first far ahead of my body, which felt jarring and slowed me down. Instead, focusing on staying tall and landing directly under my body allowed for a more controlled and speedy motion. Remember, running smarter beats running harder. Incorporate these form adjustments gradually, listen to your body, and you’ll notice your legs feeling lighter and your runs more enjoyable. Embracing these tips helped me improve my speed training and run with more confidence and less fatigue. Stay light, move quick, and run smooth—you’ve got this!