Feeling nervous before a race is normal, but managing those nerves can make a...

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 those nerves can make a big difference on track. One easy technique is to breathe in for four counts and slowly out for six to eight