My resting heart rate on 5 cups of coffee. I wonder how much my heart can take if I push a little bit harder. I should do an vo2max test... checkout Samsung S health and start tracking your fitness today. #samsungshealth #athletes #vo2max (at South Africa) https://www.instagram.com/p/Btd_Q4UH3_r/?utm_source=ig_tumblr_share&igshid=pplrvdsjnc3w









