No Placebo Group
Every participant receives an active treatment — no one gets a placebo.
Healthy Volunteers Welcome
You do not need to have the condition being studied to take part.
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At a Glance
Age
25 – 65
Sex
Any
Study type
Interventional
Purpose
Other
Participants needed
24 (estimated)
Sponsor
Oregon Health and Science University · Other
Who this trial is looking for
This trial is looking for men and women aged 25-65 to see how sleep length affects heart health. Participants will be asked to keep a regular 8-hour sleep schedule for a week.
Are You a Good Fit for This Trial?
You may be able to join if
I am between 25 and 65 years old.
I have a BMI between 18.5 and 40.
I do not have any serious medical conditions.
I do not take any prescription or non-prescription medications.
I do not smoke cigarettes or marijuana.
I fill out a health questionnaire and meet the other requirements.
You may not be able to join if
I have a serious medical condition.
I have any symptoms of an active illness.
I have a history of severe psychiatric illness.
I have worked regular night or rotating shifts in the past year.
I have traveled more than three time zones in the past month.
I am pregnant.
I am unable to make my own medical decisions.
I am in prison.
Summarized in plain language from this trial's official eligibility criteria.
The full criteria are further down this page — only the research team can
confirm whether you qualify.
Think this trial could be right for you?
Answer three quick questions written from this study's own rules to see if you may qualify. No account needed to find out.
This is a cross-sectional study with an optional intervention that will examine how extreme sleep durations relate to cardiovascular health, physical activity, and sleep quality by studying three groups of participants: short sleepers (≤ 6 hrs), long sleepers (≥ 9 hrs), and average duration sleepers (7-8 hrs). The optional intervention asks participants to maintain an 8-hour per night regular slee…
This is a cross-sectional study with an optional intervention that will examine how extreme sleep durations relate to cardiovascular health, physical activity, and sleep quality by studying three groups of participants: short sleepers (≤ 6 hrs), long sleepers (≥ 9 hrs), and average duration sleepers (7-8 hrs). The optional intervention asks participants to maintain an 8-hour per night regular sleep schedule for one week.
Trial Locations
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Eligibility Criteria
Inclusion Criteria:
* Men and women ages 25-65y
* Lean and overweight (BMI 18.5-40 kg/m2)
* No acute, chronic, or debilitating medical conditions
* No prescription/non-prescription medications or drugs of abuse
* Current non-smoker (tobacco and marijuana)
* Persons who fit all the above criteria an…
Inclusion Criteria:
* Men and women ages 25-65y
* Lean and overweight (BMI 18.5-40 kg/m2)
* No acute, chronic, or debilitating medical conditions
* No prescription/non-prescription medications or drugs of abuse
* Current non-smoker (tobacco and marijuana)
* Persons who fit all the above criteria and are suitable based on a medical history and health habits questionnaire, and additional sleep and health profiling questionnaires may be eligible to participate.
Exclusion Criteria:
* Persons with any acute, chronic, or debilitating medical condition except pre-hypertension will be excluded.
* Persons with any symptoms of acute or active illness (e.g. fever, leukocytosis) will be excluded.
* Persons with a history of severe psychiatric illness or psychiatric disorders will be excluded.
* Persons with a history of regular night/or rotating shift work in the past year, or who have traveled more than three time zones during the one month prior to the study will be excluded.
* Pregnant women, decisionally impaired adults, and prisoners will be excluded.
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