I always stress to increase the intensity of your workouts or whatever other activities you may be doing.
One of the best ways to do this is to superset all of your exercises when you are strength training. When you superset, it means you perform two exercises back-to-back with no rest between sets (or very little rest). These two exercises normally work opposing muscle groups but they can also be the same muscle group.
Super setting your exercises will increase the intensity of your workout while reducing its duration, but it will also help induce hypertrophy (muscle growth). Hypertrophy is increased (especially if you superset the same muscle group) because you are performing more reps of a different exercise that not only works the muscles differently but also greatly fatigues the muscle which can lead to substantial muscle growth.
Josh Anderson is an AFAA Certified Personal Fitness Trainer and the CEO of Always Active Athletics.