How & Why to Strengthen Your Heart & Cardiovascular Fitness

In this episode, I discuss the critical importance of building a strong heart and how to do it. I explain why the human body needs to breathe, the importance of cardiorespiratory fitness for sleep and exercise recovery, and its long-term implications for physical health, disease risk, and mortality. I explain how the heart functions, what determines heart rate, why the heart never gets sore, and the unique advantages of cardiac muscle over other muscle types. I explain how to use the ‘Three I’s’ (investigate, interpret, intervene) to assess and improve your cardiovascular fitness. I explain what VO2 max is (and other related metrics, e.g., heart rate variability), describe ranges based on age and elite performance, and discuss exercise regimens to improve VO2 max. Listeners of this episode will understand why cardiovascular health is vital for performance and overall health and learn a series of actionable tools to improve their cardiovascular fitness. Access the full show notes for this episode, including referenced articles and additional resources, at performpodcast.com. Thank you to our sponsors AG1: https://drinkag1.com/perform  Vitality Blueprint: https://vitalityblueprint.com/perform  Rhone: https://rhone.com/perform  Momentous: https://www.livemomentous.com/perform LMNT: https://drinklmnt.com/perform  Timestamps 00:00:00 Heart 00:02:48 Sponsors: Vitality Blueprint & Rhone 00:06:20 Muscle Types 00:08:47 VO2 max, Health & Mortality 00:14:42 Overall Health, Cardiorespiratory Fitness & All-Cause Mortality 00:24:16 Sponsor: AG1 00:25:47 Disease, Health & Mortality 00:28:55 Cardiac Muscle & Heart 00:37:22 Cardiac Muscle vs. Skeletal Muscle, Cardiac Advantages 00:42:46 Pacemakers & Heart Rate, Vagus Nerve 00:49:28 Why Doesn’t the Heart Get Sore? 00:53:25 Heart & Exercise, Stroke Volume, Ejection Fraction, Cardiac Output 00:58:14 Heart Rate Variability 01:01:34 Sponsors: Momentous & LMNT 01:05:47 Why Do You Breathe?: Oxygen, Carbon Dioxide & Respiratory Rate 01:12:30 Respiratory Rate & Stress 01:14:01 Tool: The “Three I’s”, Investigate: Heart Rate, Respiratory Rate, VO2 Max 01:18:46 Tool: Interpretation, Resting Heart Rate & Ranges 01:22:09 Tool: Interpretation: VO2 Max & Ranges 01:29:38 Athletes & Highest VO2 Max Scores 01:34:46 Elite Athletes & Context for VO2 Max Scores 01:40:35 Tool: Intervention, VO2 Max, Varying Exercise Intensities, SAID Principle 01:47:13 Tool: Varying Exercise Intensity; Intervals & Continuous Training; Frequency 01:57:41 Zero-Cost Support, YouTube, Spotify & Apple Subscribe & Reviews, Sponsors, YouTube Feedback, Social Media Disclaimer & Disclosures