Circadian Health Glossary

Lark

A lark refers to an individual with a natural morning-early chronotype, meaning they feel most alert and energetic in the early hours of the day. Larks tend to wake up early and perform best during the morning, often experiencing a decline in energy in the late afternoon or evening.

Characteristics of a Lark

  • Early Riser: Naturally wakes up early without needing an alarm.

  • Peak Performance: Cognitive and physical performance are strongest in the morning.

  • Early Bedtime: Prefers to go to bed earlier in the evening.

Why Is Understanding a Lark Chronotype Important?

  • Circadian Alignment: Aligning daily activities with this natural rhythm can optimize productivity and well-being.

  • Sleep Regularity: Larks benefit from maintaining consistent sleep and wake times.

  • Light Therapy: For larks who want to stay up later, evening light exposure can help shift their circadian rhythm to align better with social or work schedules.