All people are at risk for muscle soreness, even body builders and other professional athletes. The good news is that normal muscle soreness is a sign that you're getting stronger, and is nothing to be alarmed about. During exercise, you stress your muscles and the fibers begin to break down.

Is it bad to not be sore?

Not getting sore after training is not a bad thing. Soreness shouldn't be used as a measure of how effective your workout is. Instead, you should focus on other factors such as whether you can lift heavier weights, push through your workout more comfortably or add extra sets or reps to your session.

Is it healthy to be sore?

Experiencing soreness in your muscles after exercise is pretty normal. Also called delayed onset of muscle soreness (DOMS) or muscle fever, it usually occurs 12-72 hours after strenuous exercise, especially for beginners.