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Related Experiment Video

Updated: Jul 19, 2025

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World

Human Circadian Phenotyping and Diurnal Performance Testing in the Real World

Published on: April 7, 2020

A Novel Home-Based Study of Circadian Rhythms: Design, Rationale, and Methods for the Circadia Study.

Irma M Vlasac^1,2, Gregory W Bormes^1,3, Elizabeth Do¹

¹Center for Genomic Medicine, Massachusetts General Hospital, Boston, MA, USA.

|August 9, 2023

Summary

This summary is machine-generated.

The Circadia Study is developing an at-home toolkit for diagnosing circadian rhythm disorders, like delayed sleep phase. This research aims to identify genetic factors influencing these conditions, improving accessibility and reducing health disparities.

Keywords:

Advanced Sleep-Wake Phase Disorder Circadian rhythm disorders Circadian rhythms Delayed Sleep-Wake Phase Disorder Dim Light Melatonin Onset Melatonin Non-24-Hour Sleep-Wake Disorder

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Area of Science:

Sleep Medicine
Genetics
Chronobiology

Background:

Circadian rhythm disorders affect sleep timing and are influenced by genetics.
Current diagnostic methods for circadian rhythm disorders can be inaccessible.
Identifying genetic loci is crucial for developing targeted therapeutics.

Purpose of the Study:

To create an accessible, at-home toolkit for circadian phase assessment.
To build a phenotyped patient resource for genetic research.
To identify novel genetic loci associated with circadian rhythm disorders.

Main Methods:

Direct-to-participant research design.
Development of novel in-home surveys, tests, and collection kits.
Utilizing self-directed at-home dim light melatonin onset (DLMO) collections.

Main Results:

Establishing a diverse, richly phenotyped patient cohort.
Developing a user-friendly toolkit for circadian rhythm disorder assessment.
Generating preliminary data for genetic association studies.

Conclusions:

The Circadia Study aims to improve diagnostics and accessibility for circadian rhythm disorders.
Identifying genetic underpinnings will facilitate therapeutic development.
This research seeks to reduce health disparities by empowering patients with self-directed tools.