
Link Between Quality Sleep, Dreams and Good Health
In clinical terms, a “good night’s sleep” is achieved with at least seven to nine hours of uninterrupted slumber. Research shows that feeling refreshed upon awakening hinges upon several factors, the most important of which is the amount of REM (rapid eye movement) sleep we get each night. During this deep dream state -- which occurs about 90 minutes after dozing off and cycles every 90 minutes thereafter -- bursts of electrical activity are sent from the brain stem, triggering dreams.
Dreaming is important for our health, according to researchers from Harvard Medical School, who concluded that quality REM sleep helps our brains retain information more efficiently and consolidate memories. Neuroscientists and psychologists agree that repeated cycles of REM sleep supports daytime performance and overall health.
“Good dreaming contributes to our psychological well-being by supporting healthy memory, warding off depression, and expanding our ordinary limited consciousness into broader, spiritual realms,” says sleep expert, Rubin Naiman, of the Arizona Center for Integrative Medicine.
Importance of dreaming for our health
REM sleep is so critical to our health that our brains have built-in safety measures to ensure it isn’t disturbed. For instance, the sound of a dog barking or a telephone ringing may get incorporated into a dream, or changed into another sound completely. Moderate to long-term REM deprivation has been linked to numerous psychological issues, including irritability, anxiety, concentration difficulties and even hallucinations. Sleep deprivation is also associated with an increased appetite, since sleep helps to regulate hormones that trigger feelings of hunger and fullness. Researchers also point out that poor sleepers may not dream at all, as they cannot reach the deeper REM stages of sleep without interruption.Factors that can contribute to a bad night’s sleep and lack of dreaming include:
- High stress levels
- Alcohol consumption right before bed
- Keeping TVs or other electronic items in the bedroom
- Caffeine late at night
- Irregular sleep schedules
- Uncomfortable bed or sleeping environment