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.
Hydrating can prevent acne, keep away cramps, and can especially help with bloating. If youâre getting enough water, your body wonât retain liquids, keeping you comfortable. 2. Calcium. Getting some calcium in your diet can be a huge help in terms of cramping.