Inclusion Criteria:  Between the ages of 18 and 50 Generally healthy (defined as an absence of any disease or medical condition which could potentially result in abnormal body composition, including but not limited to musculoskeletal or metabolic diseases) Weight-stable (defined as no change in body mass >5 pounds in the past month)  Exclusion Criteria:  Failing to meet any of the aforementioned inclusion criteria or self-reporting a body composition abnormality (due to medical condition, lifestyle practices, etc.) Height greater than 75.5 inches (due to height limitation of DXA scanner) Weight greater than 330 pounds (due to weight limitation of some of the devices used) Presence of facial hair longer than 1/2 inch (and unwillingness to shave) or self-report of large amounts of body hair due to the impact of hair on Bod Pod body volume estimates Presence of pacemaker or any electrical device (due to electrical currents administered by bioimpedance devices) Amputation of limb, implantation of a meaningful amount metal (e.g., full joint replacement), or physical deformity large enough to invalidate traditional body composition assessments