In 1977, Dolly Parton sat down across from Barbara Walters, one of the most powerful journalists on television. Parton was already successful, but she was still viewed by many through the stereotypes surrounding where she came from, how she talked, and how she looked. Walters did not avoid those stereotypes. She went directly at them. She asked Parton whether people where Walters came from would have called her a “hillbilly.” She questioned her clothes, her appearance, and th

We have become remarkably sophisticated at measuring physical fitness. We track our steps, heart rate, sleep, pace, strength, and recovery. We understand that healthy behaviors support fitness, but they don't tell us how fit we actually are. Eventually we want to know what the body can do. How far can you run? How much can you lift? How long can you sustain effort? If we want to improve, we establish a baseline and train from there. We approach our brains very differently. Mo