I am learning MMA (Mixed Martial Arts) and i am amazed by it, after a month+ i feel like i have more energy but when i started to do grappling, i noticed my heart rate was faster than ever and my breathing was uncontrollably fast and even hours after grappling i still felt a bit out of breath, i know this is a sign of being out of shape for so many years but i want to improve my stamina, any advice, also i need help with my push-ups, any tips?
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