Hi there! You wrote: "allow your heart to drop 30-40 heartbeats per minute." I really can not understand how do you think someone can achieve this, if someone isn't already a top athlete?! Such a heart rate is very unrealistic. I started running daily for 4-4.5 km a day in one go, ending my running with 200-300 m sprints at the end (the best part;) and I could after around one month of such training reduce my heart rate from ~80 to ~70. If I reduce my heart rate to 60 that is already fabulous, and the current 70 are very decent (for someone 28 year old). Less than 45 heartbeats may be a sign of physical issues with heart, and not to even mention 30... Please check your numbers, cause something doesn't add up there. Greetings!