Podcast
Questions and Answers
What is the name given to the internal biological clock found in most organisms?
What is the name given to the internal biological clock found in most organisms?
circadian rhythm
In what part of the brain is the circadian rhythm located?
In what part of the brain is the circadian rhythm located?
hypothalamus
What hormone do 'night owls' produce later in the evening compared to 'early birds'?
What hormone do 'night owls' produce later in the evening compared to 'early birds'?
melatonin
What is the term used to describe the conflict between an individual's natural sleep patterns and imposed social schedules?
What is the term used to describe the conflict between an individual's natural sleep patterns and imposed social schedules?
According to research, by what percentage does the risk of obesity increase for each hour of circadian rhythm misalignment?
According to research, by what percentage does the risk of obesity increase for each hour of circadian rhythm misalignment?
What age group is disproportionately affected by social jetlag?
What age group is disproportionately affected by social jetlag?
According to the CDC, what is the recommended latest start time for schools?
According to the CDC, what is the recommended latest start time for schools?
How do light signals reach the circadian rhythm?
How do light signals reach the circadian rhythm?
Name one thing that can help regulate the circadian rhythm?
Name one thing that can help regulate the circadian rhythm?
What is one negative effect of disrupting your circadian rhythm?
What is one negative effect of disrupting your circadian rhythm?
Flashcards
What is the circadian rhythm?
What is the circadian rhythm?
An internal biological clock in nearly all organisms, regulating bodily functions.
Where is the circadian rhythm located?
Where is the circadian rhythm located?
The hypothalamus.
Why are some people night owls?
Why are some people night owls?
Produce melatonin later, causing later sleepiness.
What is social jetlag?
What is social jetlag?
Signup and view all the flashcards
How is the circadian rhythm influenced?
How is the circadian rhythm influenced?
Signup and view all the flashcards
What helps regulate the circadian rhythm?
What helps regulate the circadian rhythm?
Signup and view all the flashcards
How does circadian rhythm misalignment impact health?
How does circadian rhythm misalignment impact health?
Signup and view all the flashcards
Who does social jetlag disproportionately affect?
Who does social jetlag disproportionately affect?
Signup and view all the flashcards
When does the CDC advise against school start times?
When does the CDC advise against school start times?
Signup and view all the flashcards
What is true about circadian rhythms?
What is true about circadian rhythms?
Signup and view all the flashcards
Study Notes
- The circadian rhythm is an internal clock present in almost every organism, regulating various bodily functions.
- The circadian rhythm is located in the hypothalamus. Controls sleep cycles and synchronizes primary organs.
- Circadian rhythms vary among individuals; night owls produce melatonin later, leading to later sleepiness.
- Historically, night owls had roles like guarding against nocturnal threats.
- Modern society's schedules primarily fall between 6 AM and 6 PM.
- Approximately one-third of the population identifies as night owls, leading to a misalignment with standard schedules.
- Social jetlag arises from the conflict between natural circadian rhythms and imposed social schedules.
- Social jetlag is chronic and doesn't resolve quickly like regular jetlag.
- Disrupting the circadian rhythm, even with sufficient sleep, can negatively impact health.
- A study indicated that for each hour of circadian rhythm misalignment, obesity risk increases by 33%.
- Depression symptoms are notably more severe in individuals with circadian rhythms offset by over two hours.
- Social jetlag disproportionately affects teenagers due to circadian rhythm shifts during adolescence.
- The CDC advises against early school start times (before 8:30 AM) due to their negative impact on academic performance.
- Early school start times are estimated to cost the US nine billion dollars annually.
- The circadian rhythm is influenced by light signals received through the eyes.
- Exposure to morning sunlight or bright indoor lighting can help regulate the circadian rhythm.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
