Final answer:
Non-surgical body modification techniques include tattoos and piercings, not surgical procedures like liposuction or facelifts. These non-surgical methods are ways to embellish the skin without invasive medical procedures.
Step-by-step explanation:
Non-surgical body modification techniques include tattoos and piercings, which are ways people choose to embellish their skin without undergoing invasive medical procedures. These methods are distinct from surgical interventions such as liposuction, facelifts, tummy tucks, rhinoplasty, hair transplants, and breast augmentation. Tattoos and piercings are considered non-surgical because they do not require entering the body cavities or altering body structure in the way that surgical procedures do. Maintaining and improving health through diet and exercise is recommended before considering more drastic measures, like bariatric surgery, to manage serious health conditions like obesity.