By Tom Sunderland Former Formula 1 ace David Coulthard has claimed his high testosterone levels are a direct result of his high-speed career. At 53, Coulthard says he’s still got it, with tests reportedly placing him in the elite tier for hormone vitality. It seems tearing up the track at 100 miles per hour isn’t just a thrill – it could be the secret to maintaining youthful vigour. While not everyone can jump into a state-of-the-art race car, Coulthard’s experience suggests that the adrenaline rush of professional racing might just turbocharge your body’s testosterone production. “I got a glo…