For the many people wondering whether changes like sleep disruption and memory lapses are typical parts of aging, drugmaker Merck & Co. has some answers. It is normal for elderly people to get sleepy and wake up earlier than they did before, according to Merck's new how-to guide on aging. And while becoming disoriented or disruptive could mean the start of Alzheimer's disease (news - web sites), most older people tend to retell the same stories and have a tougher time recalling words or names.

Original Article: New Merck Guide Helps Seniors, Caregivers

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