The Big Story

Weekend Listen: Use the time change to fix your sleep health

19 snips
Nov 1, 2025
Join Professor Dr. Elizabeth Klerman, a leading expert in sleep medicine and neurology at Harvard Medical School, as she delves into the intricacies of sleep and circadian rhythms. She discusses how the time change affects our body clocks, leading to potential brain fog and mood shifts. Dr. Klerman shares tips for adjusting sleep routines and emphasizes the importance of morning sunlight. Learn why prioritizing sleep is crucial for health, and discover practical strategies for a smoother transition during the fall time change.
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INSIGHT

Natural Sleep Beats Alarm-Driven Schedules

  • A healthy sleep pattern is sleeping when tired and waking without an alarm if possible.
  • Society's schedules often force misalignment between individual clocks and obligations.
INSIGHT

Circadian Rhythms Govern Whole-Body Timing

  • Circadian rhythms influence sleep, alertness, hormones, heart rate, digestion and mood.
  • People vary from morning larks to night owls and communities benefit from that distribution.
INSIGHT

Sleep Is Active Brain Maintenance

  • Sleep is active: different brain areas work during REM and non-REM stages.
  • Non-REM sleep supports glymphatic drainage and removal of brain metabolites.
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