Breath, beat, repeat

Your heart rate is tied in to your breathing rate - slow breathing practices have been adopted in the modern world across the globe due to their health benefits - but, the act of controlling one’s breath for the purpose of restoring or enhancing one’s health has been practiced for thousands of years amongst eastern cultures (such as pranayama).

Controlled, slow breathing appears to be an effective means of maximising HRV and preserving autonomic function, both of which have been associated with decreased mortality in pathological states and longevity in the general population. SO breath long and prosper my friends.