Why does rain negatively affect your mood?

Although rain may be seen by some as a moment of calm, for many people it represents the exact opposite: a drop in energy, apathy or even sadness without apparent cause. But what's behind this emotional shift? Science offers some explanations.

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One of the main factors that explains the low mood on rainy days is the reduction in sunlight. When the sky is cloudy, exposure to natural light decreases, which can disrupt the functioning of the internal biological clock, or circadian rhythm.

Sunlight stimulates the production of serotonin , a neurotransmitter associated with well-being and emotional balance. With less light, Less serotonin is produced, which can cause low mood, irritability, or fatigue.

Increased melatonin

In addition to serotonin, cloudy and dark days promote the production of melatonin, the hormone that regulates sleep. Although it's essential for good sleep, too much of it during the day can lead to drowsiness and a feeling of lethargy, which contributes to the "emotional heaviness" many people experience when it rains.

Changes in routine and environment

Rain can disrupt our daily activities: Outdoor plans are canceled, traffic is complicated, and, in general, more time is spent at home. This change in routine can lead to frustration, boredom, or isolation, especially in people prone to anxiety or depression.

The physical environment also plays a role: dull sky colors, lack of light, and the constant sound of running water can create a more introspective or melancholic atmosphere.

Seasonal Affective Disorder (SAD)

In some cases, the impact of weather on mood is more than just an annoyance. There's a diagnosis known as seasonal affective disorder (SAD), a form of depression that occurs most frequently during the fall and winter , or in regions where sunlight is scarce for long periods.

Although SAD is more common in countries with long, dark winters, some people may experience similar symptoms during prolonged periods of rain or low light.

What to do to counteract it?

If you find that rain frequently affects your mood, there are some helpful strategies:

• Seek natural light: open curtains, move closer to windows, or step outside briefly when it stops raining.
• Get physically active: Exercise stimulates the production of endorphins, which lift your mood.
• Maintain social contact: Don't isolate yourself; even a brief conversation can help you feel better.
• Do things you enjoy indoors: read, cook, watch a movie, or pursue creative hobbies.
• Consult a professional if symptoms of sadness or discouragement persist or worsen.

The relationship between climate and emotions is real, but it can also be managed with small daily actions. Recognizing how your environment affects you is the first step to taking care of yourself emotionally, even in the midst of the storm.

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