biological rhythms

• What is the typical duration of a circadian rhythm?

  24 hours
• What is the role of light in circadian rhythms?

  It acts as an exogenous zeitgeber
• What did Siffre's study reveal about biological rhythms?

  His rhythm extended beyond 24 hours
• What did Ashoff and Wever's study find about circadian rhythms?

  Participants displayed rhythms of 24-25 hours
• How do social cues influence circadian rhythms in infants?

  They help entrain rhythms by schedules