1 Adolescents and Sleep David Y. Huang, M.D. Tallahassee Pulmonary Clinic, P.A. April 8, 2010.
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Transcript of 1 Adolescents and Sleep David Y. Huang, M.D. Tallahassee Pulmonary Clinic, P.A. April 8, 2010.
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Adolescents and SleepDavid Y. Huang, M.D.Tallahassee Pulmonary Clinic, P.A.
April 8, 2010
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Goals
• Provide scientific and medical background regarding adolescents and sleep
• Allow the community’s educators to look at innovative ideas regarding better sleep for our adolescent students• Provide sleep education in schools
• Improve opportunity for students to get adequate sleep each night
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Disclosures• I am a Sleep Medicine Physician
• I am 6’ 4”
• I am married to a beautiful wife and am the father of 4 children
• 9th grader at Sail
• 2 sons in middle school
• Daughter in elementary school
• I am a Leon County Taxpayer
• I receive no compensation for being here today
• I am not affiliated with the Leon School Board, SAC, or DAC
• I realize that these are tough times for all county school budgets
• I am a concerned citizen of Leon County and am an Advocate for the 5,000 high school students in Leon County
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Terminology
• Adolescent: 13-22 years old
• Teenager: 13-19 years old
• Insufficient sleep syndrome =
Chronic sleep deprivation
• Insomnia = difficulty initiating or maintaining sleep = DIMS
• Delayed sleep phase syndrome = DSPS (going to bed very late and sleeping very late)
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Sleep Needs Vary as We Age -Ideal Sleep Times
Newborns/Infants (0 - 12 months): 10.5 - 18 hours
Toddlers/Children (12 mo - 12 years): 10 - 13 hours
Adolescents 8.5 - 9.5 hours
Young Adults 7 - 9 hours
Older Adults 7 - 8 hours
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Adolescents Experience a Shift to a Later Sleep-Wake Cycle
• The biological clock of children shifts during adolescence, which drives them to a later bed time (11:30 pm or later) and a natural tendency to wake up later in the morning. Bright light at night can worsen this problem.
• This delayed sleep onset (delayed sleep phase) can place them in conflict with their schedules – particularly early school start times.
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Whose Fault Is It?
Thomas Edison The Light BulbThe Big Three
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Adolescent Sleep-Wake CycleAdolescent - Delayed circadian phase
Alert in the eveningDelayed sleep onset
Morning sleepiness and difficulty awakening from sleep
Childhood circadian phase
Normal sleep time
Later Sleep-Wake Cycle
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Adolescent Sleep-Wake CycleLater circadian melatonin phase
Alert in the eveningSleep onset insomnia
Morning sleepinessdifficulty awakening from sleep
Delayed sleep time and reduced sleep duration ▬► during the school week
Normal circadian melatonin phase
Normal sleep time
Restricted sleep time with delayed phase
NL sleep time with delayed phase
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Sleep Time
School start times
Social pressures
Substance abuse
Hormonal influence, obesity
Genetic predisposition
Delayed sleep phase
Insufficient Sleep Syndrome
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Trying to Get Enough Sleep
Late bedtime
Difficultyinitiating sleep
Afternoonnapping
Sleep restricted during school
week
Problem withdaytime alertness
Sleep restricted during school
week
Sleep longer onweekends
Problem withdaytime alertness
AdolescentViciousCycle
Graphic courtesy of Helene Emsellem, MD, George Washington University.
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Consequences of Sleep Deprivation
• Impaired cognitive, social and behavioral performance.
• Poor athletic performance, poor school performance, lower grades
• Tardiness and absence from school
• Difficulty remaining alert, difficulty being able to focus and concentrate (worse ADHD)
• Irritability, impaired mood, and depression.
• Increases in substance abuse and in obesity
• Drowsy driving, injury, and possibly death.
• How many hours of sleep do the Rickards basketball players get each night?
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Drowsy Driving and Auto Accidents
• The peak age for fall-asleep driving accidents is 20 years old
• Drivers under 30 account for 2/3 of drowsy-driving crashes.
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Circadian Rhythm Disorders
• Delayed sleep phase syndrome*• Advanced sleep phase syndrome• Irregular sleep-wake disorder• Free running sleep disorder • Shift work disorder• Jet lag disorder
* Very common in adolescents
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Treatment of Delayed Sleep PhaseSyndrome with Bright Light
ExposureGoal of treatment is to shift circadian
melatonin phase and bedtime to an earlier time
Evening reduced exposure to light
Morning exposure to bright light
- Normal sleep
- Restricted sleep with delayed phase
- Delayed sleep phase syndrome
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Treating Adolescent Delayed Sleep Phase Syndrome
• Bright light exposure in the morning• Darkness in the evening• Cognitive Behavioral Therapy
• Learning the importance of sleep• Resetting habits and associations
• Pharmacologic treatment in the evening• Melatonin• Hypnotics
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Advocacy Issue: Sleep Curriculum
• Educators, parents, and many health care providers receive little training about the physiology and importance of sleep.
• Very few schools offer information regarding sleep to their students or include sleep education in the health or science curriculum.
• We must teach our adolescents the importance of getting sufficient sleep!
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Advocacy Issue: School Start Times
• Symptoms are worst in the morning.
• Students are often living with the consequences of sleep deprivation throughout the day.
High school and middle school start times tend to be early - interrupting adolescents’ sleep patterns - and making it difficult to wake up and be alert.
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Positive Outcomes from Minnesota Schools – After Change to 8:40 Start
Time• Teachers report more alert students.• Students report less sleepiness and better
grades.• Fewer students are seeking help from school
counselors or nurses. • Parents report more “connect time” and their
teens are easier to live with.• Tardiness and sick days declined.• JAMA article on Later HS Start Times, June 2009
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Helping Schools Become Sleep-Friendly
• Many high schools across the country are establishing later start times to get in sync with a teen’s sleep schedule
• Several studies cite the positive outcomes of “sleep-friendly” high school start time policies.
• Early Bird Gets the Bad Grade - NY Times, 2008
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Dim the Lights and Say Noto TV and Computer after 8
pm
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What’s Next - Innovative Ideas for Better Sleep
• Time to digest this information (short time)
• Add sleep education to student curriculum and parent curriculum
• Change standardized testing from 8 a.m. to 10 a.m. for high schools and middle schools
• Set up a task force or committee to evaluate the optimal school start times
• Invite Ronnie Youngblood to be on the committee
• Decide where this falls on the priority list of funding
• Can Leon County be a leader re school start times22