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When insomnia persists, it can wreak physical, emotional and social havoc.

Do You Have Insomnia? There used to be an old wives’ tale that suggested older people needed a lot less sleep than younger people. But according to The National Institutes of Health, older adults only need one hour less sleep—the recommended amount is 6 1/2 to 7 hours per night. Unfortunately, almost half of adults age 60 and older experience insomnia, a form of sleep deprivation that can last anywhere from days to weeks to months. According to the National Sleep Foundation, normal sleep is NREM sleep or non-rapid eye movement sleep. There are four stages, beginning with light sleep and p...