A pharmacist has provided crucial insights into when ordinary tiredness transitions into a significant health warning sign that may require medical investigation. According to Niamh McMillan, the pharmacy superintendent at Superdrug, ongoing exhaustion should not be dismissed as mere seasonal fatigue, as it could indicate underlying issues such as nutrient deficiencies or thyroid imbalances.
Understanding the Threshold Between Normal Fatigue and Health Concerns
Niamh McMillan emphasises that while feeling more tired during winter months is common, persistent exhaustion that interferes with daily life warrants attention. "It's normal to experience some fatigue in colder seasons," she stated. "However, when tiredness becomes constant and impacts concentration, mood, or the ability to perform routine tasks, it serves as a red flag that something internally may be amiss."
Nutrient Deficiencies: A Common Culprit Behind Low Energy
McMillan highlights that low energy levels are frequently associated with deficiencies in essential nutrients like iron, vitamin B12, and vitamin D. These nutrients are vital for energy production, oxygen transport, and overall wellbeing. "During winter, when dietary habits shift and sunlight exposure decreases, such deficiencies become more prevalent," she explained.
The pharmacist notes that symptoms often develop gradually, leading individuals to endure months of fatigue without recognising an underlying cause. "Blood testing enables us to look beyond surface-level symptoms and identify what the body is truly lacking," McMillan added, underscoring the importance of diagnostic measures.
Thyroid Imbalances: When Fatigue Signals Metabolic Issues
In some cases, persistent tiredness may point to a thyroid imbalance. McMillan elaborated: "The thyroid gland regulates metabolism and energy levels. An underactive thyroid can result in ongoing fatigue, brain fog, weight fluctuations, and increased sensitivity to cold."
She cautioned that these symptoms are often misattributed to stress or seasonal burnout, allowing thyroid conditions to remain undetected for extended periods. "Blood testing is among the most effective methods to assess thyroid function and determine if further medical consultation is necessary," McMillan advised.
Practical Steps for Addressing Unexplained Tiredness
For those experiencing unexplained fatigue, McMillan mentioned that Superdrug Online Doctor offers a Thyroid Screen Blood Test priced at £69, designed to evaluate thyroid performance. "The process is discreet and convenient, providing clear results to guide next steps, whether that involves lifestyle adjustments, supplements, or consulting a healthcare professional," she said.
Additionally, McMillan pointed out that Superdrug's own-brand vitamins and supplements present an affordable option for individuals seeking to support their energy levels. By taking proactive measures, people can better manage their health and address potential issues before they escalate.
