title: Aging of cells and people.
mesh_terms: D000368:Aged; D000375:Aging; D002470:Cell Survival; D003094:Collagen / Q000502:physiology; D004702:Endocrine Glands / Q000502:physiology; D005260:Female; D006801:Humans; D007109:Immunity; D008593:Menopause; D009424:Nervous System Physiological Phenomena; D009490:Neurosecretory Systems / Q000502:physiology
chemical_list: D003094:Collagen