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Encore: How to sleep well and what can get in the way

May 12, 2026
Dr Sutapa Mukherjee, a sleep specialist and professor who studies insomnia, narcolepsy and sleepwalking, guides us through the secret life of sleep. She talks about REM and memory, parasomnias like sleepwalking and cataplexy, why naps and sleep timing matter, links between sleep and immunity, and practical strategies for insomnia and undiagnosed sleep apnoea.
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ANECDOTE

Waking Early Triggers Intense Rage Example

  • Richard Fidler describes waking 10 minutes into sleep furious and disoriented after being abruptly woken.
  • Mukherjee interprets this as the body demanding restorative sleep, producing intense agitation when interrupted early.
ADVICE

Time Evening Meals To Your Personal Sleep Needs

  • Avoid large meals close to bedtime for some people but tailor timing to individual needs; a small snack may help if dinner was early.
  • Consider age, exercise level and personal response when scheduling evening eating rather than a strict three-hour rule.
INSIGHT

Screens Amplify Teenagers' Late Sleep Tendency

  • Screen use and social media stimulate the brain and push teenagers' already-delayed biological sleep times later.
  • Mukherjee links evening screens to later sleep onset, increasing sleep restriction for early school start times.
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