Mark Hyman: Winter hits different—and there could be a reason.

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Peer-Reviewed Research
M
Mark Hyman

Video Summary · February 4, 2026

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Key Takeaways

  • Seasonal mood shifts are biologically driven, not just psychological—winter darkness directly impacts relationships and emotional regulation.
  • Check biomarkers—traditional therapy often misses underlying physiological factors affecting mental health.
  • Monitor relationship patterns—couples frequently experience increased tension during winter months due to biological disregulation.

Notable Quotes

“These problems are not just in the mind, they’re expressions of what’s happening in the body.”

Bottom Line

Assess biological factors (like light exposure and biomarkers) when addressing seasonal mood or relationship changes—don’t assume it’s purely psychological.

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Medical Disclaimer

This article is for informational purposes only and does not constitute medical advice. The research summaries presented here are based on published studies and should not be used as a substitute for professional medical consultation. Always consult a qualified healthcare provider before making any changes to your health regimen.

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