How do you keep track of your heart?

Asking this question because Bryan has been saying many times now his heart rate is one of the most important metrics for him.

Of course sleep is the number one important thing but heart rate is everything.

So how do you keep track of this? Do you set goals? See how it evolves? Do you compare with other people? Do you even care? Do you know how your heart reacts when you do certain things?

Curious to the available methods and what people use.

Since Bryan has been talking about this more and seen that in his videos I’ve taken a keen interest in this and tracking all the metrics and derivations for my own health.

I’ve set myself a goal of reducing my resting heart rate by 15%. It’s not easy. Anyone else?