molecule. 1  Chemistry, Physics. the smallest physical unit of an element or compound, consisting of one or more like atoms in an element and two or more different atoms in a compound. 2  Chemistry. a quantity of a substance, the weight of which, measured in any chosen unit, is numerically equal to the molecular weight; gram molecule.
When I do crunches my neck starts to tighten up and it makes me have to rest before doing another set of crunches.
If crunches are not for you, schedule a daily walk to get some good cardio exercise in. A 45-60 minute walk every day helps to tone up your lower body and burn calories. In addition, wearing a belly or compression wrap can help to get your stomach back to pre-hysterectomy shape. Girdles can help to reduce the appearance of flabbiness, as they contain lycra that provides extra abdominal support.