Why shorter winter days trigger biological shifts in humans and animals
As daylight fades, the natural world undergoes profound transformations. This video explores the science behind seasonal affective disorder (SAD) and examines how the shrinking days of winter initiate a cascade of neurological and behavioral changes.
The arrival of winter brings more than just cold; shorter days trigger significant biological shifts across species. In the animal kingdom, these changes are visible through groundhogs retreating into hibernation, weasels transitioning from brown to white coats, and the silence of birds that have ceased their singing. Scientists are now investigating how similar seasonal behavioral shifts occur in certain humans, specifically through the lens of seasonal affective disorder (SAD). The lesson investigates our current understanding of SAD and identifies the most effective methods for treating these seasonal behavioral changes.
Source: Winter got you feeling down? Watch this - Kelly Rohan
