That was, until the dentist told me what he’d need to do if I didn’t take action ... would slow things down. Enter masseter Botox, in which the quadrangular muscle responsible for chewing ...

More information: Abulaiti Abudurezake et al, Masseter Muscle Volume and Its Association with Sarcopenia and Muscle Determinants in Older Japanese Adults: the Bunkyo Health Study, Archives of ...