You have several body systems programmed to do that for you without having to actively think about it. (annmariegianni.com)
Several body systems maintain pregnancy through a delicate balance — altering this balance tends to promote labor,» said lead author Ramkumar Menon, assistant professor in the UTMB department of obstetrics and gynecology. (sciencedaily.com)
Multisymptom illness refers to chronic, unexplained symptoms affecting several body systems, such as fatigue, mood or cognitive (thinking) problems, and joint and muscle pain. (sciencedaily.com)