It could just be me as I'm struggling with anxiety / overwhelm lately, and a bit jittery at times anyway, but that said
Probably worth me putting a little warning here for those who don't do well with a potentially racy one.
After a few goes now I've noticed it's one for using when moving about is required, not for sitting at a desk, at least for me.
Otheriwse have to do the 10 minutes box breathing and wait for it to settle down.