Cyanobacterial Circadian Oscillator
Discover how three proteins interact to make a circadian oscillator mechanism in the cyanobacterium Synechococcus elongatus
Human Circadian Variation: Genetic Approaches
Learn how genetic manipulations in model organisms and in vitro establish circadian links to human variation in chronotype
Interview with Dr. Carrie Partch
Hear Dr. Partch discuss the structural underpinnings of molecular clocks
Cellular Oscillators
Learn about "clocks in a dish," and how in vitro mammalian clocks can be used to study circadian rhythms
Effects of Sleep Deprivation on Attention and Mood
Learn about the effects of sleep deprivation on attention and mood.
Properties of Entrainable Oscillators
Learn the properties that define an entrainable biological circadian oscillator
Healthy Light Exposure Infographic
Learn the do's and don'ts of light exposure that affect circadian rhythms and sleep
Exploring Processes C and S Part 1: Napping Protocol
Learn how sleep researchers use a "napping" protocol to separate effects of processes C and S on sleep
Luciferase Reporters in Circadian Research
Learn how luciferase reporters are used in circadian biology
Phase Response Curves
Understand phase response curves, an important - but tricky! - circadian concept
Cyanobacterial Circadian Clock Output Mechanism
Discover how the core circadian oscillator in the cyanobacterium Synechococcus elongatus sends output to regulate timing
Circadian Clock-Controlled Genes Part 1
An introductory tutorial video on the mechanisms of mammalian molecular circadian clock regulation, and how the clock regulates other genes.
An Introduction to Chronobiology
Read our three-part introduction to basic concepts in chronobiology
Links Between Mood Disorders and Circadian Rhythms
Learn about the behavioral assays and gene manipulations used in rodent models to explore links between circadian rhythms and mood disorders
Luciferase Reporters for Cyanobacteria in Circadian Research
Learn how luciferase reporters are used to study circadian rhythms in cyanobacteria
The Suprachiasmatic Nucleus: Lesion & Transplant Experiments
Learn about landmark experiments that demonstrated the role of the suprachiasmatic nucleus (SCN) in circadian rhythms
Common Clock Mechanism Graphics Tool
Use our free editable powerpoint file of mammalian, fly, and plant molecular clock mechanisms in presentations and papers
The Transcriptomic Motion Picture of Marine Microbes
A blog post about understanding daily rhythms in marine microbes.
Entrainment Simulator
Explore basic concepts of circadian entrainment, phase response curves, and phase shifts with our Entrainment Simulator