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Winter got you feeling down? Watch this - Kelly Rohan
AI Summary
This video explains Seasonal Affective Disorder (SAD) and how light therapy works, exploring circadian rhythms, melatonin, and the biological clock. B2 learners will build valuable vocabulary in psychology and neuroscience, including terms like 'circadian rhythms,' 'phase-delay,' 'rumination,' and 'cognitive-behavioral therapy.' Excellent for practicing academic English and understanding scientific explanations.
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Subtitles (37 segments)
DownloadEvery year, people leave their doctor's office with an unusual prescription.
Instead of traditional treatments like a pill, shot, or cream, they’re sent home with a recommendation for light— or more specifically, light therapy.
To understand how this works, let’s step out of the office and into this valley.
Here, as winter approaches, shorter days spark a cascade of changes within the brains of its inhabitants.
As a result, groundhogs retreat to their burrows for hibernation.
Weasels’ coats turn from brown to white, and birds cease their singing.
And scientists are finding that seasonal behavioral changes similarly happen for some humans.
Around 1% of people experience seasonal affective disorder, or SAD, a mood disorder marked by episodes of depression that recur at certain times of the year.
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Key Vocabulary (19)
People refers to a group of human beings or the general public. It is the standard plural form of the word 'person'.
To experience means to have something happen to you or to feel a particular emotion or physical sensation. It involves living through an event and gaining knowledge or awareness from it.
A year is a period of time that lasts 365 days, or 366 days in a leap year. It represents the time it takes for the Earth to complete one full revolution around the Sun.
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