Why is winter so cold in Europe? How a lack of sunlight affects your health

Winter in Europe brings cold temperatures and shorter days, but the real problem is the lack of sunlight. Reduced exposure to sunlight can negatively affect both physical and mental health, leading to seasonal affective disorder (SAD), vitamin D deficiency and weakened immunity.

Which countries and cities are most affected?

Nordic countries such as Norway, Sweden, Finland and Iceland experience the longest and darkest winters. Cities such as Tromsø, Murmansk and Helsinki see minimal daylight for months.

How to protect yourself from winter darkness

Increase your vitamin D intake – supplements or foods rich in vitamin D (salmon, egg yolks, mushrooms)

Light therapy – special lamps that mimic natural sunlight ($50–$200)

Stay active – exercise helps boost your mood and energy levels

Healthy diet – Nutrient-rich foods support immunity and mental health

Treatments and costs

Light therapy lamps: $50–$200

Vitamin D supplements: $10–$50 per month

SAT therapy: $50–$150 per session

Sunny vacations (winter getaways): $500–$3000+

Doctors and patients’ advice

Doctors recommend: daily walks outdoors, even on cloudy days, taking vitamin D.

Patient experience: Many find light therapy is very effective and is planning a vacation to a sunny place to fight winter sickness.

Stay informed and take steps to protect your health during the dark winter months!

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