Winter Blues vs Seasonal Depression in Men: Symptoms, Light Therapy and Seasonal Changes in Drive

Short answer: The winter blues are a common, mild dip in mood and energy during the darker months, while seasonal affective disorder (SAD) is a real form of depression that returns in the same season for at least two years in a row and changes how you feel, think and act.^[1] Both can lower interest in sex, energy and motivation. If a seasonal slump lasts more than two weeks or affects work, relationships or sleep, see a clinician: light therapy, CBT and medication all have evidence, and the right mix should be chosen with a professional.

Key Takeaways

• The winter blues are milder and more common than SAD. Cleveland Clinic estimates the winter blues affect about 10% to 20% of people in America, while about 5% of U.S. adults have SAD.^[4]
• SAD is diagnosed more often in women, but men get it too.^[1][2]
• Loss of interest in activities you usually enjoy, including sex, is a core depression symptom. A seasonal drop in drive is worth mentioning to your doctor, not just tolerating.
• Standard light therapy uses a 10,000 lux light box in the morning. NIMH describes about 30 to 45 minutes a day; Mayo Clinic describes about 20 to 30 minutes within the first hour after waking.^[1][3]
• Vitamin D results for SAD are mixed. Testing and supplementing should be decided with a provider.^[1]
• One small study of 80 young men found lower testosterone and sexual function scores in winter than in summer, with testosterone staying in the normal range in both seasons.^[5]

Winter Blues vs Seasonal Affective Disorder: What Is the Difference?

Most people feel a little slower when days get short. That ordinary dip is what people call the winter blues. According to the National Institute of Mental Health (NIMH), SAD is different: it is a type of depression with a recurring seasonal pattern, and symptoms typically last about 4 to 5 months of the year.^[1]

There are two patterns. Winter-pattern SAD, the more common one, usually starts in late fall or early winter and eases in spring and summer. Summer-pattern SAD is less common and starts in spring or summer.^[1][2]

How SAD is diagnosed

There is no blood test or scan for SAD, though a provider may check your thyroid to rule out other causes.^[4] Per NIMH, a person must:^[1]

• Have symptoms of depression, including the season-specific symptoms below.
• Have depressive episodes in a specific season for at least 2 consecutive years.
• Have seasonal episodes that are more frequent than episodes at other times of year.

Seasonal Affective Disorder Symptoms in Men

SAD shares the core symptoms of major depression. NIMH lists a persistent sad, anxious or “empty” mood most of the day for at least two weeks, hopelessness, irritability, feelings of guilt or worthlessness, loss of interest or pleasure in activities, fatigue, trouble concentrating, changes in sleep or appetite, unexplained aches, and thoughts of death or suicide.^[1]

Winter-pattern SAD adds oversleeping, overeating with carbohydrate cravings and weight gain, and social withdrawal.^[1] Summer-pattern SAD tends to bring insomnia, poor appetite, restlessness, anxiety and sometimes violent or aggressive behavior.^[1]

Why it can look different in men

SAD is diagnosed more often in women and in younger adults.^[2][4] That does not mean men are protected. In practice, many men do not say “I feel sad.” They notice irritability, more sleep, more drinking, skipped workouts or less interest in sex. Mayo Clinic specifically says to seek care sooner if you rely on alcohol to relax, if your sleep or appetite has changed, or if you feel hopeless.^[2]

Seasonal changes in sex drive

Low desire in winter is often part of the picture rather than a separate problem. Fatigue, oversleeping, weight gain and loss of interest in pleasurable activities all affect intimacy. If you notice a drop in drive that arrives with the dark months and lifts in spring, track it alongside your mood and sleep, and bring that record to your doctor. See also our guide to low sex drive in men.

Does Testosterone Change With the Seasons?

Possibly, but the evidence is limited and should not be overstated. A prospective study published in the Central European Journal of Urology in 2016 enrolled 80 men aged 20 to 35 and tested them twice: once in January and February, when average low temperatures were around minus 15 degrees Celsius, and once in July and August.^[5] The researchers reported significant differences between the two seasons in erectile function questionnaire scores, the frequency of sexual thoughts and ejaculations, body mass index, testosterone and FSH. Prolactin and LH did not differ significantly.

Testosterone was lower in the cold months than in the hot months, but it stayed within normal limits in both seasons.^[5] This was one small study of young men in a very cold climate, so the results may not apply to everyone. The authors’ practical conclusion was that season should be considered when evaluating testosterone and sexual function.

So a winter dip in drive does not automatically mean low testosterone. If you are being tested, ask about timing and repeat testing. See our guides on the best time to check testosterone levels and signs of low testosterone.

What Causes Seasonal Depression?

The exact cause is not known, and most research has focused on the winter pattern.^[1] The leading ideas involve light and the body clock:

• Circadian rhythm disruption. Less sunlight in fall and winter may throw off the body’s internal clock.^[2]
• Serotonin. People with SAD may have reduced activity of serotonin, a brain chemical involved in mood. Reduced sunlight may affect the molecules that help maintain normal serotonin levels.^[1]
• Melatonin. People with winter-pattern SAD may produce too much melatonin, the hormone that promotes sleep, which can add to sluggishness.^[1][4]
• Vitamin D. The body makes vitamin D from sunlight, and low levels may further reduce serotonin activity.^[1]
• Thought patterns. Negative thoughts about winter are common and are a treatment target in CBT.^[1]

Who is at higher risk

Risk is higher in people with a personal history of major depression or bipolar disorder (especially bipolar II), a family history of depression, and in people who live far from the equator.^[1][2] NIMH notes SAD is more common in Alaska or New England than in Texas or Florida.

Light Therapy and Other Treatments for Seasonal Depression

NIMH describes four main treatments that can be used alone or together: light therapy, psychotherapy, antidepressants and vitamin D.^[1] The right mix is a decision to make with a clinician.

Light therapy

Light therapy is used for winter-pattern SAD. The standard approach is a light box that gives off 10,000 lux, about 20 times brighter than ordinary indoor light, with UV light filtered out.^[1] Mayo Clinic advises using it within the first hour after waking, for about 20 to 30 minutes, at a distance of 16 to 24 inches from your face, with your eyes open but not staring at the light.^[3] Cleveland Clinic notes that some people feel better within a few days, with full benefit in about two weeks, and that eye strain, headaches and insomnia are possible side effects.^[4]

Light therapy is not for everyone without supervision:

• In bipolar disorder, increasing exposure too fast or using the box too long may trigger manic symptoms.^[3]
• People with glaucoma, cataracts or diabetic eye damage should get advice from an eye specialist first.^[3]
• Some medications increase light sensitivity and may require medical supervision.^[1]
• Choose a box made for SAD. Lamps made for skin conditions mainly emit UV light and can damage the eyes. The FDA does not regulate light boxes for SAD, and most insurance plans do not cover them.^[3]

Cognitive behavioral therapy (CBT-SAD)

A version of CBT adapted for SAD typically runs as two weekly group sessions for 6 weeks. It targets negative seasonal thoughts and schedules enjoyable activities. In a head-to-head comparison, CBT-SAD and light therapy worked about equally well, light therapy improved some symptoms slightly faster, and over two winters the benefits of CBT seemed to last longer.^[1]

Antidepressants

Antidepressants such as SSRIs can help, alone or with therapy, and usually take 4 to 8 weeks to work. The FDA has approved extended-release bupropion to prevent seasonal episodes when taken daily from fall through early spring.^[1][4] If any medication changes your sex drive or sleep, tell your prescriber rather than stopping it on your own.

Vitamin D

Many people with winter-pattern SAD are low in vitamin D, so supplements may help some people. Results are mixed: some studies found effects comparable to light therapy, others found none.^[1] Vitamin D can interact with some medications, so ask your provider whether to test your level and how much to take. Our vitamin D guide for men covers testing and food sources.

A Practical Winter Plan

Because winter-pattern SAD is predictable, people with a history of it may benefit from starting treatment before fall and continuing past the end of the season.^[1][2] Daily habits support that plan but do not replace treatment.

When to See a Doctor

Feeling down for a few days now and then is normal. Mayo Clinic advises seeing a provider if you feel down for days at a time and cannot get motivated, and sooner if sleep or appetite changes, you use alcohol to cope, or you feel hopeless.^[2]

If you are thinking about suicide or are in crisis, call or text 988 to reach the 988 Suicide and Crisis Lifeline (U.S.), available 24/7, or call 911 in an emergency.^[1][4] In Canada, you can also call or text 988.

Where Ultra Bann Fits

Ultra Bann is a natural male vitality supplement by DL Bioproducts, taken as one capsule every 2 days. It contains seven botanicals with amounts listed on the label: Thai Butea superba, Panax ginseng, Cynomorium songaricum, black ginger, tongkat ali, epimedium and reishi (800 mg total). It does not contain vitamin D. It is not a treatment for SAD, depression or seasonal changes in mood, and it is not a substitute for light therapy, therapy or medication. If you take an antidepressant or any other prescription, check with your prescriber before adding any herbal supplement. You can review the full formula on the ingredients page or visit the shop.

Frequently Asked Questions

Are the winter blues the same as seasonal depression?

No. The winter blues are a mild, common dip in mood and energy. Seasonal affective disorder is a form of depression that recurs in the same season for at least two consecutive years and interferes with daily life.^[1]

Can seasonal depression lower sex drive?

Yes, it can. Loss of interest in activities you usually enjoy, fatigue and sleep changes are core symptoms of depression, and they can reduce desire. If your drive drops every winter, mention it to your doctor along with your mood and sleep.

How long does light therapy take to work?

Cleveland Clinic says some people notice improvement within a few days, with full benefit in about two weeks of daily morning use.^[4]

Is testosterone lower in winter?

One study of 80 men aged 20 to 35 found lower testosterone in winter than in summer, though levels stayed in the normal range in both seasons.^[5] The evidence is limited.

Does vitamin D help seasonal affective disorder?

Results are mixed. Some studies found a benefit similar to light therapy and others found none.^[1] Ask your provider whether testing makes sense before supplementing.

References

1. National Institute of Mental Health. Seasonal Affective Disorder. nimh.nih.gov
2. Mayo Clinic. Seasonal affective disorder (SAD): Symptoms and causes. mayoclinic.org
3. Mayo Clinic. Light therapy. mayoclinic.org
4. Cleveland Clinic. Seasonal Depression (Seasonal Affective Disorder). clevelandclinic.org
5. The effect of seasonal variation on sexual behaviors in males and its correlation with hormone levels: a prospective clinical trial. Central European Journal of Urology. 2016;69(3):285-289. PubMed

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure or prevent any disease. This article is for information only and is not medical advice.