Management of Seasonal Depression -Seasonal Affective Disorder (SAD)

Seasonal depression, technically known as seasonal affective disorder (SAD), typically involves major depressive symptoms that appear during a particular time of year. It most often begins in late fall or early winter and continues into spring, although there is also a lesser‑known spring/summer-related pattern. SAD is thought to occur when daylight hours shorten, and exposure to natural sunlight decreases.

Although the exact cause remains uncertain, it is believed to result from chemical changes in the brain. Decreased daylight lowers serotonin levels (the “happy,” rewarding neurotransmitter); the reverse is also true — sunlight helps increase serotonin. Reduced daylight also increases melatonin levels (the “sleep hormone”), making a person feel more tired. In some cases, SAD may be inherited, and it more commonly occurs in people who have other mood disorders. It is also more frequent in those living farther from the equator. Women tend to experience SAD more often than men, possibly because melatonin changes can influence estrogen levels.

Symptoms are similar to those mentioned under "major depression". In addition to those manifestations, a person might also demonstrate aggressive behavior. 

Cloudy Days and Depression

The following are some general approaches to the Management of Seasonal Depression-Seasonal Affective Disorder (SAD):

General Approaches to Decreasing Depression of Seasonal Affective Disorder

Note: Even on a cloudy, overcast day, the sunlight is sufficient to signal your brain.

• Even on a cloudy day, get more sunlight exposure, especially in the morning after you awaken. Morning light is the most powerful way to reset your body clock, shut off melatonin, boost serotonin, and stabilize mood — which is why it’s essential for treating seasonal affective disorder (1)

• Sit by a bright window during breakfast or morning routines

• Use a light box - One of the most effective therapies. Use for 20-30 minutes each morning. Regulates melatonin and boosts serotonin.

• Dawn simulators - These are alarm clocks that gradually brighten your room before waking. Which can improve morning energy and reduce grogginess in SAD.

• SAD is often linked with a disruption of your circadian rhythm - your body's natural 24-hour clock. Keep a consistent sleep-wake schedule, keeping your circadian rhythm on track.

• Check your vitamin D levels. Low vitamin D is often linked to people with SAD. You may need supplementation, but don't overdo it.

• Therapy - Cognitive Behavioral Therapy (CBT). This is intended to reframe winter‑related thoughts and build behavioral activation.

• Seasonal affective disorder shares some symptoms with to both sadness and major depression. It may be helpful to explore those links as well.

• Outdoor movement - Combines light exposure, movement, and nature — a triple benefit.

• Exercise in general

• Stay busy with projects - withdrawal tends to make SAD worse.

• Aromatherapy and light - Citrus scents (orange, lemon, bergamot) can enhance alertness and mood. Works well paired with morning light exposure.

• Decrease blue light at night: blue light simulates the sun. Blue light can affect circadian rhythms and melatonin. This is why smartphones, tablets, PCs, LED and LCD televisions, LED light bulbs and even virtual reality headsets can affect circadian rhythms and melatonin.

• Yoga - May help support treatment of SAD by boosting serotonin and improving energy. Great to do this near a window because sunlight has added effects.

• Meditation - This is another supportive measure in the treatment of SAD symptoms. Meditation helps regulate the mood, reduce stress, and stabilize the circadian rhythm.

  Use it along with exposure to sunlight, for example, by a window. Consider mindfulness meditation or walking meditation (and others).

• Massage - Massage doesn’t treat the cause of SAD (which is rooted in light‑related circadian and neurochemical changes), but it can significantly help with symptom relief and overall well‑being during the winter months.

Over-the-counter and Herbal Approaches to SAD

Considered Natural and Herbal Remedies

• Vitamin D (often low in SAD)

• 5-HTP - May help because it is a serotonin precursor, and serotonin tends to decrease during winter months.

• SAMe - SAME may help as a supportive treatment for depression, but studies are limited with SAD. May interact with other medications that affect serotonin levels - check carefully.

• St. John's Wort (mixed, inconsistent evidence). Many potential interactions with other medications.

• Ginkgo - Ginkgo may help with mild depressive symptoms in general, but it is not considered a treatment for SAD.

Prescriptive Treatment of SAD

If other options aren’t working for seasonal depression, antidepressants may help. They’re commonly used to treat SAD during certain times of the year when it does not respond to other measures. For a full breakdown of antidepressants, see depression overview.

• SSRIs (serotonin reuptake inhibitors) (common: Escitalopram/Lexapro, Paroxetine/Paxil, Sertraline/Zoloft, and others)

• SNRIs (serotonin/norepinephrine reuptake inhibitors) (common: Effexor, Pristiq)

• NDRI - Bupropion (NDRI-increases serotonin and norepinephrine) (common: Wellbutrin)