As the clocks go back and the days grow shorter, many people begin to feel their energy dip and their mood shift.
For some, this seasonal change goes beyond a mild case of the “winter blues” and develops into a form of depression known as Seasonal Affective Disorder (SAD). Particularly among office workers—who often spend long hours indoors under artificial light—SAD can have a profound impact on motivation, focus, and overall wellbeing.
Understanding how to recognise and manage these symptoms is vital not only for personal health but also for maintaining workplace productivity and morale.
This article explores what SAD is, why office workers are especially vulnerable, and offers five practical, evidence-based strategies to help counteract its effects.
Understanding Seasonal Affective Disorder
Seasonal Affective Disorder is a type of depression that typically occurs during the autumn and winter months when natural daylight hours are reduced. It is linked to changes in circadian rhythm (the body’s internal clock), melatonin production (which regulates sleep), and serotonin levels (the neurotransmitter associated with mood).
Common symptoms include:
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Persistent low mood or irritability
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Loss of interest in usual activities
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Fatigue and low energy
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Difficulty concentrating
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Increased appetite, particularly for carbohydrates
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Disrupted sleep patterns
While anyone can experience SAD, office workers often find themselves at greater risk. Spending long hours under fluorescent lighting, commuting in the dark, and having limited access to natural daylight can all contribute to a disruption in the body’s natural rhythm. The combination of reduced sunlight exposure and sedentary routines can intensify feelings of tiredness and demotivation, creating a cycle that’s hard to break.
Why Might You Be More Affected
Modern working environments tend to keep employees indoors from dawn till dusk, especially during the darker months. For many, the only daylight exposure occurs briefly on the commute or during lunch breaks—if they get outside at all.
Artificial lighting, while functional, doesn’t replicate the benefits of natural sunlight. Natural light triggers the brain to release serotonin, which enhances mood and helps regulate focus. When this exposure is limited, serotonin levels can drop, leading to sluggishness and low mood.
Moreover, office culture often encourages prolonged screen time, minimal movement, and quick lunches eaten at desks—all of which can compound the mental and physical fatigue associated with SAD.
Fortunately, with some awareness and proactive strategies, it’s possible to mitigate these effects and support both mental and physical wellbeing throughout the winter.
Five Top Tips to Combat Seasonal Affective Disorder
Maximise Natural Light Exposure
The most effective way to combat SAD is to increase exposure to natural daylight whenever possible. Even brief periods outdoors can make a difference.
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Rearrange your workspace: If possible, sit near a window to take advantage of natural light during the day.
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Take outdoor breaks: A short walk outside mid-morning or at lunch can help regulate your circadian rhythm and boost serotonin.
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Open blinds fully: Let as much daylight into the workspace as possible—encouraging colleagues to do the same creates a shared wellbeing culture.
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Use light therapy lamps: For offices with minimal daylight, consider investing in a SAD lamp or lightbox. These simulate natural sunlight and have been clinically shown to improve mood and energy levels when used for around 20–30 minutes each morning.
Incorporating these habits can help the body recognise daylight patterns more naturally, improving alertness and overall mood.
Stay Physically Active During the Workday
Exercise is a proven way to lift mood and counteract depressive symptoms. It releases endorphins, reduces stress hormones, and improves sleep quality—all of which are beneficial for those experiencing SAD.
For office workers, incorporating movement into the day doesn’t have to mean an intense gym session. Small, consistent actions can make a big difference:
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Stretch or stand every 30–45 minutes: Use reminders or adjustable desks to avoid sitting for long periods.
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Join a lunchtime fitness class or walking group: This adds both social and physical benefits, breaking up the monotony of the day.
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Start the morning with movement: Whether it’s a brisk walk to work, a short yoga flow, or cycling part of the commute, morning activity helps stimulate energy early in the day.
Corporate wellbeing programmes can also play a role here—encouraging movement breaks, workplace challenges, or short exercise sessions can boost morale across teams.
Prioritise Nutrition and Hydration
SAD can lead to cravings for sugary or carbohydrate-heavy foods as the body seeks quick energy boosts. However, these often lead to blood sugar crashes that worsen fatigue and mood fluctuations.
Supporting the body with nutritious, balanced meals can help stabilise energy and mood throughout the day.
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Opt for slow-releasing carbohydrates like oats, sweet potatoes, and wholegrains.
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Include protein in every meal to maintain focus and satiety.
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Add foods rich in omega-3 fatty acids, such as salmon, walnuts, and chia seeds, which have been linked to improved mental health.
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Stay hydrated: Dehydration can increase feelings of tiredness and irritability—keep water within easy reach during the workday.
Some studies also suggest that Vitamin D supplementation can help, as reduced sunlight means many people become deficient in winter. Checking with a healthcare professional before taking supplements is always advised.
Create a Positive and Supportive Work Environment
The emotional climate of a workplace can heavily influence how staff cope with winter’s challenges. A supportive environment—where wellbeing is openly discussed—helps reduce stigma and encourages people to seek help early if they’re struggling.
Managers and wellbeing leads can:
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Promote open conversations about mental health and seasonal challenges.
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Offer flexible working options, such as slightly later start times to allow for morning daylight exposure.
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Organise wellbeing activities, from guided mindfulness sessions to group walks or wellbeing workshops.
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Ensure access to our Proactive Employee Assistance Programme (PEAP) or mental health support services.
Simple gestures—such as recognising effort, celebrating small wins, or fostering team connection—can make a tangible difference in morale.
For individuals, maintaining social connections within the workplace is equally important. Engaging in informal chats, joining group activities, or simply checking in with colleagues can counter isolation and boost emotional resilience.
Establish a Restorative Routine Outside Work
While workplace strategies are essential, how employees manage their time outside of work is equally crucial. Winter can easily lead to a “work-home-repeat” cycle that limits stimulation and rest. Building a routine that supports mental wellbeing helps sustain energy levels and prevent burnout.
Key habits include:
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Maintaining consistent sleep patterns: Go to bed and wake up at similar times daily, even on weekends. Good sleep hygiene helps regulate mood and energy.
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Limiting screen time before bed: Blue light from phones and laptops interferes with melatonin production, making it harder to fall asleep.
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Engaging in relaxing activities: Reading, listening to music, mindfulness, or creative hobbies can reduce stress and offer a sense of fulfilment.
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Spending time in nature: Weekend walks or outdoor activities—even in colder weather—help reconnect you with daylight and movement.
The goal is to restore balance, ensuring that work pressures don’t dominate your mental and physical wellbeing during the darker months.
Seasonal Affective Disorder is a genuine and significant challenge for many people, especially office workers whose daily routines limit their exposure to natural light and movement.
But with awareness, practical adjustments, and supportive workplace cultures, its impact can be greatly reduced.
Prioritising daylight exposure, physical activity, nutrition, social connection, and restorative habits can transform the way individuals and teams navigate the winter months. Employers play a key role in facilitating these positive changes—helping to create environments where people can thrive all year round, not just in the summer.
As the season changes, taking small, intentional steps towards wellbeing can make all the difference. Bright days are still possible—even in the depths of winter.