Feeling jittery before a race is normal, but managing nerves can make all the...

https://victor-wiki.win/index.php/Regulation_167_of_the_Human_Medicines_Regulations_2012_Explained_Simply

Feeling jittery before a race is normal, but managing nerves can make all the difference on track. This article explores a simple breathing trick—breathe in for four seconds, then out for six to eight—that helps calm your mind