Amid the rise of sleep-tracking wearables, many individuals are discovering a discrepancy between their sleep scores and how they feel upon waking. A lack of slow wave sleep, or deep sleep, could be the culprit, as advised by sleep experts.
Understanding Deep Sleep
Deep sleep, or slow wave sleep, is part of the non-rapid eye movement (NREM) phase, according to the National Sleep Foundation. NREM is divided into three stages, with N3 being the deepest. Dr. Avinesh S. Bhar of Sliiip, a telehealth company, explains that deep sleep is crucial for metabolic health, immune system regulation, and mood stabilization. Research in Psychoneuroendocrinology links insufficient deep sleep to imbalances in hunger hormones, potentially leading to overeating.
Signs of Deep Sleep Deprivation
Indicators of inadequate deep sleep include persistent fatigue, reliance on stimulants, and mood disturbances. Dr. Roger Washington of the Sleep to Live Well Foundation points out that deep sleep is the only stage that repays sleep debt, making it essential for recovery. Symptoms like cognitive decline and increased depression rates may signal a deep sleep deficit.
Boosting Deep Sleep Quality
Sleep hygiene is paramount, with Dr. Anne Marie Morse highlighting the impact of diet, caffeine intake, and stress management on sleep quality. Creating a dark and cool sleeping environment is also recommended. Dr. Washington suggests going to bed earlier to ensure the body prioritizes deep sleep.
- Sleep Hygiene: Avoid caffeine and screens before bed and manage stress effectively.
- Bedtime Routine: An earlier bedtime can help the body focus on deep sleep.
- Check for Sleep Apnea: Conditions like obstructive sleep apnea can disrupt sleep cycles.
- Medication Review: Some medications, like beta blockers, may affect sleep.
Addressing Underlying Issues
Sleep apnea, prevalent in 25-30% of U.S. men, disrupts sleep with breathing interruptions, says Dr. Morse. Consulting a sleep doctor is advised if symptoms persist. Medication effects, particularly from beta blockers and antidepressants, should also be evaluated with a healthcare provider.
For optimal functioning and health, addressing the underlying causes of poor deep sleep is crucial. Prioritizing sleep hygiene, managing stress, and consulting professionals can significantly improve sleep quality.
Source: https://www.gq.com/story/how-to-get-more-deep-sleep-according-to-experts-4
