Guwahati, Aug. 14 -- A cough is one of the most common ailments people experience and is often dismissed as a minor inconvenience, as it may seem like a simple reaction to dust, cold weather, or seasonal changes.

However, not every cough is harmless, and paying attention to certain warning signs can help prevent more serious health issues.

Persistent coughing that lasts more than a few weeks should never be ignored. While occasional coughs are normal, a long-lasting cough could indicate underlying problems such as asthma, bronchitis, or even more serious conditions like tuberculosis or lung infections. If a cough disrupts your daily routine or sleep, it's a signal that your body may be asking for medical attention.

The nature of the co...