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Seasonal Affective Disorder (SAD) impacts the lives of around twelve million people across central and northern Europe, two million people in the UK alone. A similar but milder depression called Sub-syndromal Seasonal Affective Disorder (SSAD), sometimes known as winter blues, is even more widespread.

Lightlog is an Edinburgh based project creating wearable, low-cost devices that automatically record ambient light levels and colour from your environment. Visualisations show the light in your daily routine, and help reveal how it may be affecting your mood and energy levels. See our blog or follow @lightlogproject on Twitter for updates and project progress. All software and hardware is developed under Open Source or Creative Commons licensing.

Wearing Lightlog helps keep an eye on your daily routine and check you’re getting out and about enough each day. It can highlight times of your day where you’re getting too little, or too much light. It can help you track and change your daily routine to improve your sleep quality, mood, and energy levels. Dementia and Parkinson’s disease can also affect sleep patterns, logging daily light profiles can help a carer or clinician help manage daily routines to improve sleep quality.

Beat those winter blues!

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