Drew Manning, the founder of Fit2Fat2Fit,  garnered international attention 10 years ago when he deliberately gained 75 pounds just to lose it in a few short months. Now, he's doing it again, gaining 60 pounds in four months before starting a massive weight loss effort in January. His goal, he says, is to better understand the struggles many go through trying when to lose weight. Drew discusses how the idea came to him (3:25), how he's going about his weight gain (8:30), the shock to his system as he doubled his food intake (10:08), seeing his HRV tank (16:22), gaining weight, losing sleep (17:34), respiratory rate and body changes (21:04), finding empathy for those who struggle with weight (22:19), the emotional toll the process has taken on him (29:20), staying in shape as you age (30:47), how his mental state has changed (35:08), finding your willpower (40:15), and using data to better understand your body (46:19).

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