Sleep Science and Chronotype Resources
Research-based articles on chronotypes, circadian rhythms, and sleep science. Every article is sourced from peer-reviewed studies.
For informational purposes only. Not a substitute for professional medical advice.
Why Mondays feel harder than they should: the science of social jet lag
The Monday struggle is not primarily about how much you slept on the weekend. It is about your biological clock operating on a different schedule than your social one. There is a name for it, and understanding it changes how you interpret your own fatigue.
Read article →Why Do I Crash in the Afternoon? The Science Behind the Energy Dip
The afternoon slump is real, biological, and not primarily caused by lunch. Research has documented it for decades. Here is what is actually happening in your body, and why your chronotype affects when it hits.
Read article →What Is a Chronotype? The Science Behind Your Body Clock
Your chronotype is your biological tendency to sleep and feel alert at certain times of day. It is shaped largely by genetics and influences far more than just when you go to bed. Here is what the research actually says.
Read article →Find your body clock type
The free bodyclockhub.com quiz takes under 2 minutes. Find out whether you are a Morning Type, Midday Type, Evening Type, or Variable Type and get your personalized sleep window.
Take the free quiz →