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4. Deep Sleep: The Restorative Stage

N3 sleep, colloquially referred to as "deep sleep," offers the most robust health benefits. During this stage of sleep, brain activity is characterized by very slow delta waves, which experts suggest allow the body to heal and grow most effectively. Living up to its "deep sleep" moniker, awakening someone in N3 sleep proves to be difficult in most cases and often results in mental fogginess or impaired mental performance. Unfortunately, recent studies suggest this type of sleep decreases with age, which may account for the slower healing times older adults experience.

man in deep sleep

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This site offers information designed for educational purposes only. You should not rely on any information on this site as a substitute for professional medical advice, diagnosis, treatment, or as a substitute for, professional counseling care, advice, diagnosis, or treatment. If you have any concerns or questions about your health, you should always consult with a physician or other healthcare professional.