A tremor or loss of strength in the hand may be a single event brought on by something as simple as aging or numbness from a temporary lack of blood supply.

Your latissimus dorsi, or lats, are powerful back muscles. Your lats adduct, extend, internally rotate and transversely extend your arm at the shoulder and also assist with scapular depression, downward rotation and adduction.

Reps and sets are terms used by exercise professionals, athletes and individuals in the gym. They provide structure and organization to your workout. If you work with a personal trainer or physical therapist, she will prescribe an exercise based on a specific number of sets and reps.

Lifting weights has a number of well-documented benefits, including increased strength and muscle size, greater muscular endurance, improved bone mass, and increased muscle mass. You can, however, have too much of a good thing.

You know the scene: Muscular, sculpted men clustering around the gym’s weight machines, busting out multiple sets of pullups and spotting one another on impossibly heavy bench presses. How, exactly, do those guys get those bodies?

There is a plethora of differing and often contradicting opinions about the effects of cannabis, or marijuana; some claim that it has medicinal properties, and some hold that it has only negative effects.

Weight and muscle loss can result from various conditions. Because they can result from serious health conditions, anyone experiencing sudden changes in weight or muscle mass should see their physician.

Before a muscle can grow stronger, it will incur microscopic damage in the course of a difficult workout or resistance training. The process of healing can last a week or longer and possibly overlap with the next workout.

You can develop size in your thighs with regular bouts of weight-training that’s designed to build muscle size.

A heel lift, also known as plantar flexion, is performed by the gastrocnemius, soleus and plantaris, which make up the triceps surae muscle group on the back of the lower leg.

Composite materials include any products made from a blend of two or more base materials, according to the University of Delaware's Center for Composite Materials. By mixing multiple materials together, manufacturers can combine the best properties of each base component.

Muscle Milk is a drink produced by GNC. It is rich in protein and comes in a variety of flavors like vanilla, chocolate, cookies and cream and strawberry. Although Muscle Milk is fortified with numerous minerals and vitamins, there are several side effects that you should look out for.