Circadian Rhythm and Health

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A Decade of Partnership with Sleep Science in Portugal

For ten years, Portuguese researcher Cátia Reis has used Condor Instruments’ actigraphs in research on sleep and biological rhythms. From

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Uma década de parceria com a ciência do sono em Portugal

Há dez anos, a pesquisadora portuguesa Cátia Reis utiliza os actígrafos da Condor Instruments em pesquisas sobre sono e ritmos

Person asleep wearing a wrist actigraphy device used for sleep and circadian rhythm research.

Circadian Biomarker Discovery Using Integrated Wearable Sensor Data

Chronobiology research has entered a new phase. Whereas researchers once relied on isolated physiological measurements or single-sensor wearables, the field now

Individual sleeping peacefully in bed during a study focused on sleep behavior and circadian rhythm assessment.

Beyond Sleep Duration: Quantifying Circadian Light Exposure in Real-World Research

Sleep research has evolved far beyond measuring total sleep time. Researchers now recognize that light exposure shapes circadian timing, hormone

An actigraph from Condor Instruments

Wearable Sensor Fusion for Circadian Health Studies

Circadian health research has moved decisively into the real world. Where laboratory chronobiology once required controlled environments and fixed equipment,

Smartphone-based sleep and activity diary application used to collect participant-reported data in circadian rhythm research.

Measuring Light Where It Matters: Wearable Placement Strategies for Circadian Research

Clinical researchers rely on wearable light exposure measurement to understand how environmental light shapes circadian timing. Physicians and sleep specialists

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Why Circadian Rhythms Matter More Than Sleep Duration for Recovery

When it comes to recovery, many people focus on getting enough sleep, but research shows that circadian rhythms play a

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What is the relationship between anxiety and sleep? 

Result of the most diverse neurobehavioral effects, deprivation of sleep it’s the gateway to an enormous range of diseases and

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Jet lag and social jet lag: what it is, what causes it and its consequences for the human body 

Sleeping is fundamental for maintaining human homeostasis and repairing various metabolic, cognitive, and hormonal processes. However, simply sleeping is not

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How is sleep regulated?

Human beings spend around 30% of their lives sleeping and, for this reason, the renowned researcher Allan Rechtschaffen wrote that