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Should I be taking a nap every day?
Q I’m 74 and pretty active. I have started to take a catnap in the afternoon when I’m at home and find myself feeling tired. The problem is, I often wake up feeling groggy afterwards. My children are encouraging me not to do this, as they say that I’m turning into an old lady!
Sarah, Harpenden
When we sleep, we go into two phases. One is rapid eye movement (REM) and the other