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Even a small increase in light activity such as washing dishes, or walking around the house might help prevent an early death among older adults, researchers say.“It is important for elderly people, who might not be able to do much moderate intensity（强度）activity, that just moving around and doing light intensity activity will have strong effects and is beneficial,” said Ulf Ekelund, who led the research.Published in the BMJ, the latest research was based on a review of eight studies involving a total of more than 36,000 people with an average age of almost 63 years. Participants we我是小医生（找错并改正）．