Light in the Dark: Understanding Seasonal Depression (Part 1)

Hey Friend, Let’s Talk About Seasonal Depression

If you’ve ever felt down or extra tired as the days get shorter and colder, you’re definitely not alone. Seasonal depression—officially called Seasonal Affective Disorder or SAD—is real, and it can sneak up on anyone, even the most positive people. I want to share what I’ve learned, both from research and my own experience, in hopes that it helps you (or someone you care about) feel a little less in the dark this season.

For me, the first time I realized something was off was after moving far up north. I’d always thought I was just “bad at winter,” but it was more than that. The heaviness, the tiredness, and the lack of motivation felt so out of character. If this sounds familiar, you’re not alone—and there’s nothing wrong with you.

What Is Seasonal Affective Disorder (SAD)?

SAD is a type of depression that usually shows up in late fall or winter, when sunlight is scarce and days are short. It’s not just “winter blues”—it can seriously affect your mood, energy, sleep, and motivation. For some, it’s mild; for others, it can feel overwhelming and disruptive.

Common Signs and Symptoms

• Feeling sad, hopeless, or down most days, for weeks at a time

• Low energy, fatigue, or trouble getting out of bed—even after a full night’s sleep

• Losing interest in things you usually enjoy, like hobbies or socializing

• Changes in appetite (craving carbs and sweets is surprisingly common!)

• Difficulty concentrating or making decisions

• Sleeping more than usual, but still feeling tired

• Feeling more irritable or anxious than usual

It’s easy to brush these off as just “being tired” or “not liking winter,” but these symptoms are real and valid. If you notice them in yourself or someone you care about, it’s worth paying attention.

I remember how I’d wake up dreading the gray sky, and even my favorite hobbies felt like a chore. It was comforting to learn that this wasn’t just a personal failing—it was my brain and body reacting to real changes in the environment.

Why Does SAD Happen?

Scientists believe it’s mostly about light. When there’s less sunlight, your body’s internal clock (your circadian rhythm) gets thrown off. This can affect the production of mood-regulating chemicals like serotonin and melatonin. Lower serotonin can make you feel down, while changes in melatonin can mess with your sleep and energy.

It’s not about willpower or positivity—it’s biology. Some people are just more sensitive to these changes. If you’ve ever wondered why you feel so much better on a sunny day, it’s not your imagination. Light really does make a difference.

Who’s Most at Risk?

• People living far from the equator, where winter days are much shorter

• Women (SAD is diagnosed more often in women, though men may have more severe symptoms)

• People with a family history of depression or other mood disorders

• Those who already deal with depression or bipolar disorder

• Younger adults (SAD often starts in young adulthood but can affect anyone)

But honestly, anyone can feel it. Even if you’ve never had mental health struggles before, big seasonal changes can throw you off. If you’re noticing these shifts, you’re not weak or lazy. Your body is responding to real, environmental changes.

You’re Not Alone

Whether this is your first winter feeling off, or you’ve been through it before, know that there’s nothing wrong with you. Understanding what’s happening is the first step to feeling better. It can help to talk about it, reach out for support, or just give yourself a little extra grace.

If you have your own story about seasonal depression, feel free to share it in the comments. We’re in this together, and sharing our experiences can help others feel less isolated.

Next time, I’ll share how to spot the signs early and what to do if you notice them in yourself or someone else. Stay cozy, and remember—brighter days are coming.

I got your 6,

L'Orèal Del-Vonnè