Winter Blues or Seasonal Depression? Signs to Watch for as the Days Get Shorter
If you live in Eastern Idaho, you know the moment. One week it's still light when you leave work, and the next, you're driving home in the dark. The cold settles in, the sky turns gray, and you start to feel a little heavier, a little slower, and a little less like yourself.
For many people, that dip is mild and passes. For others, it's more than a rough patch. It's a pattern that shows up every fall and lifts every spring. That pattern has a name: seasonal affective disorder, often called seasonal depression or SAD.
At Greenstone Counseling, we see this every year. If you're wondering whether what you feel is "just winter" or something more, this article will help you sort it out. You can also learn more about how we approach depression treatment and therapy in Idaho.

What is seasonal depression?
Seasonal affective disorder is a type of depression that comes and goes with the seasons. According to the National Institute of Mental Health, it most often starts in late fall or early winter and eases during spring and summer. Symptoms typically last about four to five months of the year.
It's not a character flaw or a lack of willpower. Researchers believe changes in daylight affect the body's internal clock, sleep, and mood-related brain chemistry. SAD is also more common the farther north you live, where winter days are shorter. That includes us here in Rexburg and Pocatello.
Winter blues vs. seasonal depression: what's the difference?
The "winter blues" are common. You might feel a bit more tired, want to stay in more, or crave comfort food. You still enjoy things, you still get through your days, and the feeling doesn't take over.
Seasonal depression is more than that. It looks like depression, and it affects how you function. A helpful question to ask yourself is: Is this changing how I live, or just how I feel on some days?
Winter blues | Seasonal depression |
Mild low mood that comes and goes | Low mood most of the day, most days |
Still enjoy friends, hobbies, and family | Lose interest in things you usually love |
A little more tired | Exhausted even after a lot of sleep |
Life keeps working | Work, school, or relationships start to slip |
Lifts with a good day or a sunny weekend | Hangs on for weeks, often returning each year |
Signs to watch for as the days get shorter
Seasonal depression includes many of the same symptoms as other kinds of depression, such as:
Feeling sad, empty, or down most of the day
Losing interest in activities you used to enjoy
Low energy or feeling slowed down
Trouble concentrating
Feeling hopeless, worthless, or guilty
Changes in sleep or appetite
The winter pattern often adds a few specific signs:
Oversleeping. You sleep more than usual and still wake up tired.
Carb cravings and overeating. Bread, pasta, and sweets start to call your name.
Weight gain. Often linked to the cravings and lower activity.
Pulling away from people. Some people describe it as wanting to "hibernate."
If you're noticing several of these, and they've lasted two weeks or more, it's worth paying attention. If you've noticed the same thing happening at the same time each year, that's another important clue.
Sometimes seasonal depression looks less like sadness and more like exhaustion. If that sounds familiar, you may find our article on why you always feel tired helpful too.
Who is more likely to experience seasonal depression?
Anyone can experience it, but NIMH notes it is more common in:
People who live farther from the equator, where winter daylight is shorter
Women, who are diagnosed much more often than men
Young adults, since it often begins in early adulthood. That matters in a college community like Rexburg.
People with a family history of depression or other mental health conditions
People already living with depression, bipolar disorder, ADHD, anxiety, or an eating disorder
What actually helps
The good news is that seasonal depression is very treatable. There are several approaches, and many people use more than one.
1. Therapy. Cognitive behavioral therapy (CBT) has been adapted specifically for seasonal depression. It helps you notice and challenge the heavy, negative thoughts winter can bring ("There's no point," "I'll feel like this forever"). It also helps you plan small, doable activities that rebuild energy and connection. In one study NIMH describes, CBT and light therapy worked about equally well, but the benefits of CBT lasted longer over two winters.
2. Light therapy. Sitting near a special light box, usually for 30 to 45 minutes each morning, is a common treatment. Talk with your doctor before starting, especially if you have eye conditions or a history of bipolar disorder.
3. Medication. For some people, antidepressant medication is helpful. This is a conversation to have with your primary care provider or a psychiatric provider.
4. Daily habits that support your mood. These aren't a cure, but they can make a real difference:
Get outside during daylight, even for 10 minutes at lunch
Keep a steady sleep and wake time, including on weekends
Move your body in ways you enjoy, indoors or out
Plan things to look forward to on the calendar
Stay connected, even when you don't feel like it. A short text or walk with a friend counts.
When to reach out for help
You don't have to wait until you're falling apart to talk to someone. Consider reaching out to a therapist if:
Your symptoms have lasted more than two weeks
Work, school, parenting, or relationships are starting to suffer
You've noticed this same pattern for more than one winter
You're relying on food, screens, alcohol, or sleep to get through the day
You feel hopeless or have thoughts that life isn't worth living
If you're having thoughts of suicide or are in crisis, please call or text 988 to reach the Suicide & Crisis Lifeline, available 24/7. If you're in immediate danger, call 911.
Support for seasonal depression in Rexburg, Pocatello, and online
Winter in Eastern Idaho is long, but you don't have to white-knuckle your way to spring. Our therapists help people understand what's happening, build a plan that fits their life, and start feeling like themselves again.
Greenstone Counseling offers depression therapy at our offices in Rexburg and Pocatello, with virtual counseling available throughout Idaho. You can explore all of our specialties, learn about costs and insurance, or book an appointment when you're ready.
The days will get longer again. In the meantime, support is here.




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