Prostate cancer expert, Dr. David Samadi, stresses the importance of getting no less than 7 hours of continuous sleep each night. A new 3-year sleep study found that adults getting 6 or fewer hours of sleep each night are increasing their risk of stroke 4-fold. Lack of sleep causes hormonal changes and affects critical cortisol levels. Quality of sleep is also important. Research indicates that 60% of stroke patients also suffer from sleep apnea.
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