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Seasonal Mental Health: What the Research Says in 2026

By Sarah Chen, PsyD • 8/9/2025


I got an email last week from a reader that stopped me in my tracks. They wrote: "I feel like nobody actually understands what this is like."

I want to try.

What's Really Going On

This is the part most people skip, but it might be the most important section.

The World Health Organization estimates that this affects approximately 1 in 4 people globally at some point in their lives. If you're reading this, the math says several of your close friends are dealing with something similar — they just haven't told you.

The Practical Part

This is where things get interesting — and where most generic advice falls short.

I had a client — let's call her Meera — who struggled with exactly this for years. She'd tried everything the internet suggested. The apps, the journals, the morning routines. Nothing stuck. What finally made a difference was surprisingly simple: she stopped trying to fix herself and started trying to understand herself.

What I've Seen Work

A 2023 meta-analysis in the Journal of Clinical Psychology looked at this exact question. Here's what they found.

Here's my "right now" emergency list — things you can do in the next 60 seconds:

  • Splash cold water on your face. This triggers the mammalian dive reflex and immediately slows your heart rate.
  • Hold something cold. An ice cube, a frozen water bottle. The sensation interrupts the anxiety circuit.
  • Do the physiological sigh. Two quick inhales through your nose, then one long exhale through your mouth. Repeat three times.
  • Push your feet hard into the floor. This activates your proprioceptive system and grounds you in your body.
  • Hum or sing. The vibration stimulates your vagus nerve, which controls your parasympathetic (calming) nervous system.

Why This Matters More Than You Think

Okay, let's get practical. Enough theory.

The World Health Organization estimates that this affects approximately 1 in 4 people globally at some point in their lives. If you're reading this, the math says several of your close friends are dealing with something similar — they just haven't told you.

Progress isn't going to look like a straight line. There will be setbacks. Days where you feel like you're back at square one. You're not — you're just having a hard day. Those are different things.

Remember: seeking help isn't a sign of weakness. It's one of the bravest things you can do.