Your resting heart rate is one factor used to identify potential health conditions and gauge the health of your heart; by maintaining your resting rate from 60 to100 beats per minute you lower your risk of cardiovascular disease and improve your overall health.
When a healthy demand is placed on your heart muscle it grows stronger, but an unhealthy demand may increase the risk the muscle will weaken.
A healthy nutritional intake has a positive impact on your heart health and resting heart rate; conversely, nicotine and alcohol intake will negatively affect your heart health.
Aerobic exercise is a stress reducing activity, as is yoga, Pilates and Tai Chi; Buteyko breathing improves your oxygenation and reduces stress, while Emotional Freedom Techniques (EFT) help reduce stress and improve your weight loss efforts.
https://fitness.mercola.com/sites/fitness/archive/2019/11/01/ways-to-lower-resting-heart-rate.aspx