Doctors have warned Nigerians, particularly those living with respiratory conditions such as asthma, bronchitis, and chronic obstructive pulmonary disease (COPD), to avoid drinking cold water. They cautioned that cold water intake may provoke severe respiratory distress and exacerbate pre-existing symptoms.
Public health specialists and pulmonologists emphasized that while cold water generally does not endanger healthy individuals, it can irritate the airways of those with chronic respiratory problems and should therefore be avoided. The alert comes in response to growing concerns over the popular practice of consuming iced beverages, especially in hot weather. Experts noted that this habit could be harmful to people with weakened respiratory systems.
Speaking exclusively to Punch Healthwise, the experts recommended that Nigerians choose lukewarm or room-temperature water, particularly during or after physical activity or when managing respiratory issues.
Dr. Halimat Odedeji, a consultant pulmonologist at Olabisi Onabanjo University Teaching Hospital in Shagamu, Ogun State, explained that cold water can cause airway constriction, which may lead to breathing difficulties in vulnerable individuals. According to her, the risks are especially high for children, the elderly, and those already dealing with conditions like asthma or bronchitis.
“For people with respiratory issues, drinking cold water can trigger a reflex that tightens the airways. This can cause shortness of breath, coughing, and in severe cases, an asthma attack. It’s not just about the temperature. The body responds to cold in the throat and chest by narrowing the passageways. This can make breathing harder and increase mucus production, making symptoms worse,” she said.
Similarly, Professor Tanimola Akande, a public health expert at the University of Ilorin, Kwara State, noted that cold water can provoke coughing and worsen respiratory problems in some individuals, including those with asthma, bronchitis, and allergies.
“Cold drinks can cause the airways to constrict in sensitive individuals, triggering cough and even exacerbating existing respiratory issues,” he said.
He explained that coughing is the body’s natural reflex to clear the airways of irritants, mucus, or foreign substances, often caused by infections, allergies, asthma, or environmental factors. However, for people with vulnerable respiratory systems, cold water can act as an additional trigger. The professor also highlighted that children and older adults are particularly at risk.
“Children have smaller, more reactive airways, while some elderly people struggle with proper coordination of the swallowing reflex, especially when exposed to sudden cold temperatures,” he added.
He further advised that individuals with respiratory infections, asthma, or allergies may notice worsening symptoms if they consume cold water.
“Anyone who notices consistent coughing or discomfort after drinking cold water should avoid it and consider switching to room temperature or warm water. More importantly, they should see a doctor to determine if there’s an underlying condition that needs treatment,” he said.
While acknowledging that cold drinks are not the sole cause of coughing, Professor Akande stressed the importance of recognizing personal sensitivity and avoiding known triggers to protect respiratory health.
