I love Kayla!! Smartest trainer I've ever had the luck to know. There's a reason she is a regional manager, she is dynamic with her approach to nutrition, lifestyle and training.
Few doctors associate sub clinical tachycardia with poor sleep, much less trainers. Kayla throws it down. She doesn't meathead load her clients on hyper protein diets and unsupported carb loading. She also doesn't abuse ketosis. She uses lab work and feedback to set her protocols.
If you have the opportunity, train with her or study under her. She is a rare, brilliant gem.