Catabolic - Chemical reactions in the body where larger units are broken down into smaller subunits. As an example, muscle tissue may be broken down into protein strands which, in turn, may be cleaved into individual amino acids.

Dip Belt - Large heavy belt worn around hips with chain at each end that can be attached to a barbell plate or dumbbell for additional resistance during certain exercises like dips.

Food Diary - written record of all food and drink ingested in a specified periods

Glycemic Load - The measure of the density and digestion speed of carbohydrates (the glycemic index of a food multiplied by the amount of carbohydrates per serving). The goal of low carb eating is to keep the glycemic load low. Carrots, for example, even though they have a high glycemic index, have a much lower glycemic load than pasta because they are less carbohydrate-dense.

Gynecomastia - Condition in males caused by an excess of testosterone or an excess of a testosterone-derived agent. When it becomes converted (aromatized) to estrogen the excess estrogen stimulates receptors in the nipple area leading to a swelling which resembles female breasts. The condition is commonly called "bitch tits". The condition is often severe enough to require surgery.

Lean Body Mass - the percentage of muscles in the tissue

Sleeve - The hollow metal tube fit over the bar on most exercise barbell and dumbbell sets. This sleeve makes it easier for the bar to rotate in your hands as you do an exercise. Spotters - Training partners who stand by to act as safety helpers when you perform such heavy exercises as squats and bench presses. If you get stuck under the weight or begin to lose control of it, spotters can rescue you and prevent needless injuries.