Articolo del 16/12/2025
With the change of seasons, many people experience fatigue, weight fluctuations, irritability, or difficulty concentrating. These symptoms are often attributed to a simple “transition period,” but in some cases they may be signs related to thyroid function—a small yet essential gland for maintaining the body’s overall balance.
What is the role of the thyroid? How do thyroid levels change?
We discuss this with Professor Grilli, an endocrinologist and thyroid specialist.
The thyroid regulates metabolism and influences numerous vital functions: from heart rate to body temperature, from physical energy to mood. When the gland’s activity slows down, a range of symptoms may appear, affecting overall well-being.
Why do seasonal changes have an impact?
During seasonal transitions—particularly from winter to spring or from summer to autumn—the body must adapt to new temperatures, circadian rhythms, and dietary habits.
This process of adaptation can also interfere with thyroid function, especially in individuals with a more fragile hormonal balance.
Climate-related changes, such as temperature fluctuations (colder or warmer conditions) and variations in light exposure (the length of day versus night), can affect:
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metabolic response;
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alterations in cortisol secretion;
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the absorption of iodine and other essential micronutrients.
Why Are Regular Check-Ups Important?
Monitoring thyroid hormone levels, TSH, and vitamin D3 (25-OH), and—when indicated—assessing the gland’s morphology through a thyroid ultrasound at least once a year (preferably during seasonal transition periods) is advisable in order to:
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optimize therapy in patients undergoing integrative or replacement thyroid treatment;
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identify any deviations from normal values at an early stage;
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achieve better metabolic balance and regulation.
All of this contributes to improving overall quality of life.
Beyond medical check-ups, how important is it to support thyroid health through good daily habits?
For optimal thyroid health, it is essential to maintain:
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a balanced and nutritious diet;
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proper hydration;
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relaxing and physical activities to help manage stress;
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regular and restorative sleep patterns;
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avoidance of “do-it-yourself” approaches, such as taking supplements or changing therapy without medical supervision.
Promoting harmony between body and mind is particularly important during periods when the body is more sensitive to environmental changes. Listening to your body is the first step toward prevention.
Undergoing thyroid check-ups during seasonal transitions can make a real difference to your well-being.
At Ars Medica, there is a dedicated center for thyroid diseases and related conditions. Through personalized and targeted care pathways, it is possible to identify metabolic imbalances at an early stage and, when appropriate, achieve effective therapeutic adherence through natural treatment approaches.
