“When the suffering begins, our brain pleads with us to not think too far into the future. I can’t endure 60 minutes of this, but I can do 10 minutes. I can’t get through 8 weeks of solid exercise, but I can get through today. The neurological beauty of segmentation is that once the segment is completed, you get a mini-squirt of dopamine (pleasure juice) that resets the coping clock.”