They can consider improving diet, sleep, and social engagement, factors that might ease depression and dementia.

他们可以考虑改善饮食、随眠和社会交往等因素，后者可能减轻抑郁和痴呆。

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A pet may help lower blood pressure and heart rate, for example, or ease stress, loneliness and even dementia-related agitation in the elderly.

比如，养宠物有助于降低血压和心率，能够缓解压力、减轻孤独感、甚至可以缓解老年痴呆症所引起的焦虑。

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