How to Manage Seasonal Affective Disorder Through the Winter

To manage seasonal affective disorder, combine daily habits that support your body clock, such as morning light, regular sleep and movement, with professional treatment when symptoms are significant. Seasonal affective disorder (SAD) is a form of depression that returns at about the same time each year, usually in fall and winter. Light therapy, talk therapy and medication are common options.

This guide is for adults in Texas who notice their mood, energy or motivation drop as days get shorter, and for family members who see the pattern in someone they love. It explains how SAD differs from the winter blues, what you can do day to day and when to get help.

This article is general information, not a medical recommendation. Do not start, stop or change any medication without talking to your prescriber.

What is seasonal affective disorder?

Seasonal affective disorder is a type of depression with a seasonal pattern. The National Institute of Mental Health (NIMH) describes SAD as depression that comes and goes with the seasons, with symptoms usually lasting about four to five months a year, and notes that a diagnosis generally requires the pattern to occur for at least two consecutive years.

Most people with SAD have winter-pattern symptoms that begin in late fall or early winter and ease in spring. A less common summer pattern also exists. NIMH notes that SAD occurs much more often in women than in men and, in most cases, begins in young adulthood.

SAD is not a separate illness from depression. It is a way of describing depression that follows the calendar. That matters because the same careful evaluation and treatment options that help depression in general also apply here, with some seasonal additions such as light therapy and planning ahead for the darker months.

How is SAD different from the winter blues?

SAD is more intense and disruptive than the winter blues. The American Psychiatric Association (APA) explains that SAD is more than the winter blues and can interfere with daily functioning.

• Winter blues: feeling a bit flat or tired on gray days, but still managing work, family and plans.
• SAD: low mood most of the day, loss of interest, oversleeping, and difficulty functioning that repeats season after season.

If you are not sure which you have, our article on winter blues or seasonal depression offers more ways to compare.

What are the symptoms of winter-pattern SAD?

Winter-pattern SAD symptoms include the core signs of depression plus some seasonal features. NIMH lists symptoms such as oversleeping, overeating with a craving for carbohydrates, weight gain and social withdrawal that feels like hibernating.

• Feeling sad, empty or hopeless most of the day.
• Loss of interest in activities you usually enjoy.
• Low energy and feeling sluggish.
• Sleeping much more than usual.
• Carbohydrate cravings and weight gain.
• Pulling away from friends and family.
• Trouble concentrating.

MedlinePlus notes that SAD usually starts in late fall or early winter and lists risk factors such as living farther from the equator, being female, being younger and having a family history of depression.

Why does less daylight affect mood?

Less daylight affects mood partly because light is the main signal that sets your body clock. The National Institute of General Medical Sciences (NIGMS) explains that light has the biggest influence on circadian rhythms, including the timing of the sleep hormone melatonin.

When mornings are darker and evenings come early, sleep and wake signals can drift, which may affect energy and mood in people who are sensitive to seasonal change. The end of daylight saving time can make this shift feel sudden; see our tips to reset your body clock after falling back.

How can you manage seasonal affective disorder day to day, step by step?

You can manage seasonal affective disorder day to day by building a steady winter routine that protects light, sleep, movement and connection. These steps support treatment but do not replace it.

1. Get morning light. Open blinds as soon as you wake and spend time outdoors or by a bright window early in the day.
2. Keep a consistent wake time, including weekends, even if you feel like sleeping in.
3. Move every day. The Centers for Disease Control and Prevention (CDC) notes that physical activity reduces the risk of depression and helps you sleep better.
4. Plan small pleasures. Schedule one enjoyable activity on the calendar each week.
5. Stay connected. Set regular calls or meals with people you trust.
6. Track your mood. A 0 to 10 rating each evening helps you notice when things slip.
7. Start early next year. If SAD returns each year, talk with a clinician before the season begins.

NIMH notes that people with a history of SAD might benefit from starting treatment before the fall, although few studies have tested whether SAD can be prevented. Planning in late summer, before symptoms return, gives you time to set up routines and appointments while your energy is still higher.

For example, a hypothetical person who usually notices a drop in November might book a check-in for September, buy a sunrise alarm, and arrange a weekly walk with a friend through the winter months.

Is light therapy safe, and who should be careful?

Light therapy can help many people with winter-pattern SAD, but it is not risk-free and should be discussed with a clinician first. A research review in the PubMed Central archive describes side effects of light therapy and notes that rare episodes of elevated mood, called hypomania or mania, have been reported.

A 2025 International Society for Bipolar Disorders task force recommended clinical monitoring for people with bipolar I disorder during bright light therapy. The APA also advises talking with a physician before using a light box. Be especially careful if you have:

• Bipolar disorder or a past episode of mania.
• Eye conditions or a history of eye problems.
• Medicines or conditions that make you sensitive to light.

What treatments help seasonal affective disorder?

Common treatments for SAD include light therapy, talk therapy and medication, used alone or together. MedlinePlus lists antidepressants and talk therapy as treatments that can be used alone or in combination with light therapy.

NIMH describes a form of cognitive behavioral therapy adapted for SAD, called CBT-SAD, and reports that in a direct comparison CBT-SAD and light therapy were equally effective in improving SAD symptoms, with the benefits of CBT seeming to last longer in a long-term study. NIMH also notes that studies of vitamin D for SAD have produced mixed results.

Medication choices are made with a prescriber after an evaluation. If you want a structured short-term approach, our two-week seasonal depression plan is a good companion to this guide.

What should you tell a clinician about seasonal symptoms?

Tell a clinician when symptoms start and stop each year, what changes you notice and how they affect your life. The APA notes that SAD can be confused with other conditions, such as hypothyroidism or viral infections, so a full picture helps.

Use this checklist before your visit:

• Months when you typically feel worse and better.
• Changes in sleep, appetite, weight and energy.
• Any past episodes of very high energy or little need for sleep.
• Current medicines and supplements.
• Whether family members have had depression or bipolar disorder.
• What you have tried, such as light, exercise or routine changes.

When should you get help sooner?

Get help sooner if winter symptoms make it hard to work, care for yourself or others, or if you have thoughts of self-harm. NIMH advises seeing a health care provider when depression symptoms last two weeks or longer.

• Thoughts of suicide or of not wanting to be alive.
• Staying in bed most of the day.
• Drinking more alcohol to cope.
• Pulling away from everyone for weeks.
• Very high energy, racing thoughts or little need for sleep, especially in spring.

Holidays can add pressure on top of seasonal symptoms; see our article on why SAD can feel harder around Christmas. For a crisis, call or text 988. Call 911 for immediate danger.

Can Texans have seasonal affective disorder?

Yes, Texans can have seasonal affective disorder, though it is less common here than in northern states. NIMH notes that SAD is more common in places like Alaska or New England than in Texas or Florida.

Texas winters are often milder and sunnier, but shorter days, gray stretches and holiday stress still affect some people. Some Texans also notice a summer pattern, when intense heat keeps them indoors. If your mood follows the calendar, it is worth discussing whatever season it is.

Getting support in Texas

Lyte Psychiatry offers therapy, psychiatric evaluation and medication management in Texas. In-person visits are available at Lyte Psychiatry's clinic in Pantego, in the Dallas–Fort Worth area, and Lyte Psychiatry offers telehealth visits to patients who are physically located in Texas at the time of the visit. All Lyte Psychiatry services are available in Spanish.

Most new patients are seen within 1–2 business days. Weekend appointments are limited. Insurance, availability and clinician fit require confirmation. Lyte Psychiatry is an outpatient practice and does not provide crisis or after-hours coverage. Learn more about depression care or telehealth in Texas.

If you are in a mental-health crisis in the United States, call or text 988. Call 911 for immediate danger.

Educational information, not a diagnosis or individual treatment plan.