People need less sleep as they grow older. More people doze off at the wheel of a car in the early morning or midafternoon than in the evening. Although it is a time when your body rests and restores its energy levels, sleep is an active state that affects both your physical and mental well-being. Adequate restful sleep, like diet and exercise, is critical to good health. Insufficient restful sleep can result in mental and physical health problems and possibly premature death.
Many people doze off unintentionally during the day despite getting their usual night of sleep.
This could be a sign of a sleep disorder. Approximately 40 million Americans suffer from sleep disorders, including sleep apnea, insomnia, narcolepsy, and restless legs syndrome. An untreated sleep disorder can reduce your daytime productivity, increase your risk of accidents, and put you at risk for illness and even early death. Persistent loud snoring at night and daytime sleepiness are the main symptoms of a common and serious sleep disorder, sleep apnea. Another symptom is frequent long pauses in breathing during sleep, followed by choking and gasping for breath.