No. The number of days you strength train is based on your personal goal. And, let’s be real, the time you can sneak away from your job or family for a workout. I give you 4 strength workouts a week because it is the ideal recommendation to become stronger. However, you have to consider other factors and priorities in your life and adjust. At a minimum, I recommend you do 1 lower body and 1 upper body workout a week.