Ellen has been in my Tuesday strength class for three years, and she is not a quiet woman. She counts her reps out loud. She heckles my playlist. So when she asked me to repeat the cue for goblet squats — three times in a row, leaning in each time — I noticed. So did the two women next to her. After class she laughed it off: “Everyone mumbles now, Soph.” I’ve heard that exact sentence before, from my father, standing next to a television turned up so loud the neighbors could follow the plot. Here’s the part most people…