Your Personal Sleep Biology
The Science of Chronotypes
Chronotypes are genetically determined patterns that influence your ideal sleep-wake cycle.
Four Main Chronotype Categories
Understanding bears, wolves, lions, and dolphins sleep patterns.
The Bear Chronotype
Follows the solar cycle with peak productivity mid-morning.
Ideal Sleep Schedule for Bears
11pm-7am sleep with important tasks before 2pm.
Determining Your Chronotype
Simple methods to identify your natural rhythm.
Morning-Eveningness Questionnaire
Validated assessment tool for chronotype identification.
Natural Wake Test
Tracking when you wake without an alarm on vacation.
Aligning Life With Your Chronotype
Practical adjustments for better energy management.
Work Schedule Optimization
Matching important tasks to your peak hours.
Social Life Adjustments
Strategies for evening types in a morning world.
Chronotype Changes Over Lifetime
How our natural rhythms evolve with age.
Teen Sleep Phase Delay
Why adolescents naturally stay up later.
Senior Sleep Advance
Earlier bedtimes common in older adults.