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Why do we feel happier when the sun’s out?

Mar 31, 2026
They explore how sunlight influences mood, sleep and overall wellbeing. They discuss geography and latitude effects on daily light exposure. They explain the role of different qualities of light, lux levels and why outdoor light often beats indoor lighting. They cover practical approaches used at northern latitudes, cultural responses to winter and simple routines to notice and use daylight.
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ANECDOTE

DIY Wart Treatment Backfires

  • Chris Van Tulleken tried two over-the-counter wart-freezing devices and tested them on himself first.
  • He accidentally applied one spray for 40 seconds instead of 3 and gave himself a blistered frostbite on his tummy.
ANECDOTE

Researcher Relocates For Light And Routine

  • Hester Parr moved some of her work from Glasgow to northwest Mallorca during research leave to access more sunlight.
  • She shapes her life around a daily light routine and photographs the sky to reduce winter dread.
INSIGHT

Latitude Isn’t The Whole Story

  • Latitude alone doesn't determine light exposure; local climate and culture shape how much light people actually get.
  • Glasgow shares latitude with Moscow but has a maritime climate that produces duller, wetter light year-round compared with Moscow's continental climate.
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