Is my metabolism slowing with age? What’s the secret to good skin? And is there anything I can do about my crows feet? Medical, health and diet experts offer a midlife MOT Is my metabolism slowing with age? What’s the secret to good skin? And is there anything I can do about my crows feet? Medical, health and diet experts offer a midlife MOT According to the dietician Rick Miller : “By the time a man hits his mid-40s, several physiological changes are already under way. Testosterone drops at