Support system. your work out partner is supporting you by working out with you.
Heavy weight lifting is fitted on Anaerobic Activities
Heavy Weight lifting is considered short lasting-high intensity training which relies on on muscle strength rather than cardio vascular capabilities ( if it relies on cardio, it fitted on Aerobic Activities)
other Examples of anaerobic activity : Pull ups, Bench Press , Push up, etc
Answer:
Bones of all shapes and sizes support your body, protect organs and tissues, store calcium and fat and produce blood cells.
The hormones are known as endorphins, which cause a high of happiness and accomplishment, and a strong sense of calm
