Understanding and Treating Seasonal Affective Disorder (SAD)

Many people feel their mood ebb as the light dwindles with the darker mornings and shorter days of autumn and winter. However, it’s important to distinguish between a simple fondness for summer and something more clinical. When your vigour for life begins to wane with the sunlight, it might be something known as Seasonal Affective Disorder, more commonly known as SAD.

SAD is a mood disorder that stems from the lack of sufficient exposure to bright sunlight in winter


What is Seasonal Affective Disorder (SAD)?

It’s not uncommon to stop feeling like your normal self during the winter months and to be affected by the darker mornings and shorter days. This is often referred to as the ‘winter blues’ or ‘winter depression’.

However, some people experience symptoms that are much more severe, and this is a recognised condition called Seasonal Affective Disorder, or SAD for short. SAD is a type of depression that surfaces at a specific time of year, typically in the colder, darker months. It’s much more than a case of the ‘winter blues’; SAD can profoundly affect your mood and energy levels, making it difficult to cope with work and day-to-day life, and putting strain on your relationships.

Why does SAD occur?

Scientists believe that reduced sunlight can disrupt your body’s internal clock or circadian rhythm.

The amount of light entering your eyes regulates your daily rhythms and moods. When you spend most of the gloomy autumn and winter days indoors in dim light or even near-darkness, your pineal gland is signalled to produce melatonin (which ordinarily happens at night), making you feel sleepy and tired.

Lack of sunlight in the winter can also affect your levels of the ‘feel-good’ hormone, serotonin. Low levels of serotonin can leave you feeling down and fatigued, making it difficult to concentrate and complete what would usually be simple tasks.

This disruption can lead to feelings of depression in several ways:

  • Disturbed sleep-wake cycle: Your body relies on sunlight to time various functions, including when to wake up
  • Imbalanced serotonin levels: This ‘feel-good’ hormone is regulated by sunlight, so less exposure can lead to a decline in your mood
  • Increased melatonin production: Overproduction of this sleep-related hormone can leave you feeling sleepier and more lethargic

How do you recognise if you’re affected by SAD?

Knowing the symptoms can be the first step toward getting help. Symptoms of SAD often include:

  • Persistent low mood
  • Loss of pleasure or interest in everyday activities
  • Irritability
  • Feelings of despair, guilt and worthlessness
  • Sleeping for longer than usual and finding it hard to get up
  • Craving carbohydrates and gaining weight

If these symptoms sound familiar and tend to recur seasonally, it might be time to consult a healthcare professional.

Seasonal Affective Disorder can envelop you in a shroud that feels a tad too heavy to shake off alone. But understanding what SAD is and recognising its signs are the first steps towards reclaiming your joie de vivre.

Light at the end of the tunnel

SAD lights, like Lumie Vitamin L can help treat the symptoms of SAD and winter blues

The good news is that there are treatments to help combat SAD and the winter blues.

Light therapy, using specially designed SAD lights, is an effective and drug-free method of treatment. Products like Lumie Vitamin L and Lumie Halo help relieve the symptoms of SAD and fit seamlessly into your daily routine.

SAD lights provide a bright, white light that mimics the natural sunlight you miss during autumn and winter. The bright light suppresses melatonin production, helping you feel more alert and productive. The idea is to use SAD lights for a set amount of time each day to help:

  • Regulate your circadian rhythm
  • Improve your mood
  • Increase your energy levels

You can easily incorporate SAD lights into your morning routine – it’s as simple as switching on a light. With regular use, you may find your symptoms improve significantly.

Light therapy and the innovative technology of sunrise alarm clocks can harmoniously blend into your life, offering a natural, effective remedy to the symptoms of SAD, bringing back the brightness to your winter days.

How does light therapy work?

Light therapy, also known as phototherapy, involves exposure to daylight or specific wavelengths of light using polychromatic polarised light, lasers, light-emitting diodes, fluorescent lamps, dichroic lamps or very bright, full-spectrum light.

The principle is surprisingly simple. Light therapy mimics natural outdoor light and causes a chemical change in your brain that lifts your mood and eases other symptoms of SAD.

The effectiveness of light therapy hinges on the science of circadian rhythms. Circadian rhythms (your body’s internal clock) signal when it’s time to sleep or wake up. Your circadian rhythm is heavily influenced by environmental cues, with light being the most potent. During the shorter days of winter, your body may crave more daylight than it gets, leading to disruptions in your biological clock that can cause SAD.

When you sit near a light therapy box such as the Lumie Vitamin L, your eyes soak up the light, which causes a chemical change in your brain. This change boosts your mood and helps alleviate symptoms of SAD by:

  • Increasing serotonin levels: Often referred to as the ‘feel-good’ neurotransmitter, serotonin can affect mood, appetite, sleep and memory — many of the elements disturbed by SAD.
  • Regulating melatonin: This hormone governs your sleep patterns and mood; light therapy can help recalibrate your body’s release of melatonin, which can be out of sync with the seasons.
  • Restoring circadian rhythm: Light therapy can help shift your internal clock forward or back, which can help you adjust to the changing seasons.

How can you use light therapy effectively?

Consistency is essential to realise the full benefits of light therapy. The following tips will help you integrate it smoothly into your daily routine:

  • Timing is crucial: Morning light therapy sessions are typically the most effective. Schedule 30 minutes every morning.
  • Consistency matters: Daily sessions are more beneficial than sporadic use. Make it a non-negotiable part of your daily ritual, like brushing your teeth.
  • Get your distance right: Sit about 30 to 60 centimetres away from the light box, with the light on your face for optimal exposure. Don’t look directly at the light to avoid potential harm to your eyes

It’s also essential to choose a light box that emits as little UV light as possible.

While light therapy may seem like a modern-day miracle, it’s the product of rigorous research. Numerous studies support its effectiveness, but like any treatment, results can vary from person to person. A meta-analysis published in the ‘American Journal of Psychiatry’ found light therapy to be as effective as antidepressants for many individuals with SAD, without some of the side effects associated with medication.

If you’re considering light therapy, it’s always best to consult with a healthcare professional first to ensure it’s right for you, especially if you have conditions that make your eyes more sensitive to light.

Can sunrise alarm clocks or wake-up lights help with SAD?

One of the problems associated with SAD or winter blues is poor sleep and difficulty waking.

On a late spring or summer morning, the bright sunrise signals your body to stop producing melatonin, helping you wake up refreshed and ready for the day. On short, dull winter days, when you don’t get enough light to trigger this process, you may find it more difficult to wake up feeling alert.

An alarm clock that mimics a sunrise to wake you gently can help.

How do sunrise alarm clocks or wake-up clocks work?

Sunrise alarm clocks can help you wake up as nature intended

Sunrise alarm clocks can help you wake up as nature intended – your room gradually lighting up with a soft, warm glow, signalling your body to ease out of sleep naturally. A personal dawn that helps align your waking routine with your body’s internal clock.

Lumie is a pioneer of sunrise alarm clock technology, and here’s how these innovative devices recreate a natural sunrise:

  • Light intensity: Your sunrise alarm / wake-up clock starts with a gentle light that slowly becomes brighter over a set period. This gradual increase in light intensity stimulates a natural response, making mornings feel less abrupt and more soothing.
  • Colour changes: Mimicking the sunrise, the colours transition from soft reds to oranges, finally reaching the bright white light of midday. This spectrum shift supports the production of hormones that help you wake up, like cortisol, while suppressing the sleep hormone melatonin.
  • Customisable settings: You can often personalise the duration of the sunrise, depending on what suits your sleep cycle best. It’s about crafting your perfect morning.

As your body registers this light, even with closed eyes, your sleep becomes lighter, guiding you gently from deep sleep to wakefulness. The result? You open your eyes feeling refreshed, alert and ready to face the day.

How do sunrise alarm clocks complement light therapy for SAD?

If you’re managing SAD, light therapy is likely a cornerstone of your strategy. The beauty of sunrise alarm clocks is that they dovetail perfectly with your light therapy routine. Here’s how they work together:

  • Consistent light exposure: Using a sunrise alarm clock ensures you start your day with light, maintaining a consistent routine, which is crucial in managing SAD symptoms.
  • Regulating sleep patterns: By normalising your waking time, sunrise alarm clocks help regulate your sleep patterns – a critical factor in managing SAD.
  • Reducing sleep inertia: The grogginess you feel upon waking – known as sleep inertia – can be tougher when dealing with SAD. The simulated dawn provided by sunrise alarm clocks can reduce this inertia, making mornings feel less daunting.

To truly make the most of these benefits, consider incorporating the following practices into your routine:

  • Place the clock strategically: Position your sunrise alarm clock so the light falls on your face. This position maximises the effect of the simulated dawn.
  • Combine with daylight: If possible, complement your morning routine with exposure to natural daylight. Even on cloudy days, natural light can help regulate your body’s rhythms.
  • Mind Your evening routine: Dimming household lights and reducing screen time in the evening can enhance the effects of your morning light therapy, supporting a healthy circadian rhythm.

What about lifestyle interventions?

When you’re suffering from SAD, light therapy can be a shining ray of hope, but a few lifestyle tweaks can also make a difference. It’s like teaming up superheroes for your health – each strategy brings its own strength to the fight against SAD.

Light therapy: your daily sunshine

Start your day with a dose of simulated sunlight. Light therapy devices, like those from Lumie, offer a concentrated and medically-certified form of light that can help regulate your body’s internal clock or circadian rhythms. They’re particularly effective when used consistently as part of your morning routine.

Enhance light therapy with a sunrise alarm clock

A sunrise alarm clock is a gentler, more natural approach than a traditional alarm clock’s shrill ring. It gradually increases the light in your bedroom, simulating a sunrise to help adjust your body to waking up naturally, feeling refreshed and less groggy.

Diet, exercise and routine

A balanced diet, exercise and routine all impact your mood and energy

Just as light therapy and sunrise alarm clocks can positively impact your mood and energy, so can a balanced diet, regular physical activity, and a structured daily routine.

  • Nourish your body: What you eat is pivotal to your overall mood and energy levels. Foods rich in omega-3 fatty acids, for example, are known to support brain health and may improve mood.
    • Omega-3: Include foods like salmon, walnuts and flaxseeds in your diet.
    • Vitamin D: Since sunlight is scarce, foods fortified with vitamin D or supplements can be beneficial.
  • Stay active: Exercise is a natural mood booster. It releases endorphins, which improve mood and energy levels.
    • Regular activity: Aim for at least 30 minutes of exercise most days of the week.
    • Outdoor exercise: When possible, take your workout outside during daylight hours to maximise natural light exposure.
  • Create a routine: A consistent routine helps regulate your body’s clock, reinforcing your natural circadian rhythms.
    • Regular sleep and wake times: Try to go to bed and wake up at the same time every day.
    • Evening wind-down: Reduce exposure to bright screens before bed to signal to your body that it’s time to rest.

By combining light therapy with these lifestyle strategies, you create a holistic approach to managing SAD. It’s about more than just addressing the symptoms; it’s about nurturing your body and mind consistently. So, take these tips, tailor them to fit your life, and watch how they can lead to brighter days. Remember, while SAD is a seasonal visitor, your wellbeing is a year-round commitment.

How can light therapy improve your wellbeing?

Discovering that you might be experiencing SAD could feel like a significant moment in understanding why the shorter days seem to cast a shadow over your mood. But knowledge is the first step towards empowerment, and by recognising the signs of SAD, you’ve unlocked the door to a suite of strategies that can profoundly impact your wellbeing.

Where to start your journey towards a brighter mood during the changing seasons

Choose the right device and be consistent

It all starts with simple steps that can lead to significant changes in your wellbeing. Here are some suggestions to get you on your way:

  • Choose the right device: Lumie offers a range of light therapy solutions that cater to various needs and preferences.
  • Set a routine: Consistency is vital. Try to use your light therapy device daily, at the same time, ideally just after waking up.
  • Monitor your progress: Keep a diary to record your mood and sleep patterns and track the benefits over time.


  • Be patient: Adaptation to light therapy takes time. You might not feel different overnight, but with perseverance, the benefits will unfold.
  • Seek support: Combining light therapy with professional advice can tailor a treatment plan that suits you best.

It’s not just about combating SAD. It’s about reclaiming your love for all seasons, about finding balance and harmony throughout the year. It’s about greeting each day with a renewed sense of vitality and optimism.

It all begins with letting the light back into your life – not just through your windows, but through intentional, nurturing practices like light therapy. It’s a small gesture that will help illuminate your room and your spirit!

Medical Disclaimer:

Food supplements should not be used as a substitute for a varied and balanced diet and are not intended to diagnose, treat, cure or prevent any ailments.

This website contains general information about food supplements. The information is not advice and should not be treated as such. All content, including text, graphics, images and information available through this website, is for general information purposes only. bodykind makes no representation and assumes no responsibility for the accuracy of the information available through this website, and such information is subject to change without notice.

bodykind does not recommend, endorse or make any representation about the efficacy, appropriateness or suitability of any specific tests, products, procedures, treatments or other information that may be contained on or available through this website.

You must not rely on the information on this website as an alternative to medical advice from your doctor or other professional healthcare providers. You should consult your doctor or other professional healthcare providers if you have any specific questions about any medical matter. You should seek immediate medical attention if you think you may be suffering from any medical condition. You should never delay seeking medical advice, disregard medical advice, or discontinue medical treatment because of information on this website.

Comments are closed here.