Your love/hate relationship with leg day is getting serious. The harder you hit it the more impaired you are the next day. Even your family has started to comment on your strange behavior. But don't worry, you're not alone. Some things are universal, including these post-leg-day experiences.

They say you should never skip leg day, and while that's true, here are the habits you should never skip during your leg day workout.

Jillian Michaels' workouts can slim your thighs as well as your entire body. Here, the 30 Day Shred creator dishes on how to lose thigh fat.

To simultaneously lose thigh fat and build size in your butt, your workout regimen should include both cardiovascular exercise and weight training. It’s not possible to target your thighs for fat loss, however.

Performing eccentric exercises — where the muscles contract while lengthening — can help keep your legs injury free.

The P90X legs and back workout includes 23 sets of exercises featuring several pull-up variations, lunges and squats.

Many people use bad knees as an excuse to avoid exercise. Whether you have arthritis, a former injury or another condition that causes your knees to ache, there are steps and precautions you can take to make running on your knees as painless as possible.

Leg kickbacks are effective exercises for strengthening the glutes and building a shapely butt. Choose from kneeling kickbacks or standing cable kickbacks.

To lose upper thigh fat, a whole-body program that combines diet and exercise is really the only way to go.

Is your hamstring injured? Train cardio with exercises that either don’t involve the legs or minimize hamstring use enough to prevent re-injury and avoid discomfort.

Bad knees don't have to take you out of the exercise game. Consider options that are easy on the joint.

Exercise can help you burn calories to lose weight all over, including around your knees and quads, but it can't target specific pockets of fat.