If I’m not sore the day after a workout, does it mean I didn't work hard enough?
Being sore the day after a workout is a great indicator that your routine was challenging and put new stresses on your muscles, which is important for muscle growth. However, being sore the next day is not the only indicator that an exercise session was beneficial. You can ask yourself the following questions during your workout: Am I breathing hard? Is my heart rate elevated? Are my muscles burning? These are all indicators of a great workout.