Feeling nervous before a race is normal, but managing it can boost your focus...

https://cashsimpressiveblog.scriblorax.com/posts/4-in-6-out-breathing-for-anxiety-is-that-the-right-ratio

Feeling nervous before a race is normal, but managing it can boost your focus on track. This article shares a simple breathing trick—breathe in for a count of four, then out slowly for six to eight seconds—to calm your mind