It had long been believed that neurons, the active cells of the brain and nervous system, do not regenerate. Recent research has shown, however, that new cells are added to certain areas of the brain -- including those involved with memory and the sense of smell -- well into adulthood.

جالبه، متن کامل و نتايج تحقيقي که در اين زمينه انجام شده اينجاست!