The most common symptoms of a chest infection include a persistent cough, wheezing, breathlessness, a high temperature, coughing up phlegm, a rapid heart rate and chest pain or tightness. People may ...

“People think it’s something you should spit out and get rid of, but it’s an amazing substance.” It’s not just in your nose — it’s everywhere. More than 95% water by weight, mucus lines all of the wet ...

“When you’re unwell, your mucus can become thicker and stickier, but it’s still playing a vital role in trapping bacteria, ...