Do you ever feel like the harder you work to change your body the harder it fights to stay the same? Well you may not be that far off the mark -- it probably is fighting you, depending on exactly what it is you're trying to change. Scientists in Israel have discovered that a person's lean body mass is mostly influenced by genetic factors, and we all know you can't fight genetics (well you can fight, but you won't win).

So what does this mean? Well the specifics of this information still need to be uncovered, but for now I'm just taking it as one more argument for focusing on overall health and wellbeing on an individual basis, and not comparing ourselves to others.