45-yr-old ‘century cyclist’ dies of heart attack - Charan C Sadashivan https://timesofindia.indiatimes.com/city/bengaluru/45yrold-century-cyclist-dies-of-heart-attack/articleshow/107375173.cms Cardiovascular Damage Resulting from Chronic Excessive Endurance Exercise https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6179786/