This is the 96th instalment in a series on dementia, including the research into its causes and treatment, advice for carers, and stories of hope. A quiet heartbreak is unfolding behind the closed doors of dementia care, one that few carers dare to speak about openly: the ebb of physical intimacy. A tentative question posted to an online dementia carer support group sparked a flurry of moving responses. That question: “I really don’t know how to approach this subject, but I’m wondering who is...