Snot, also known as nasal mucus, plays a powerful role in protecting us from disease – and its colour alone can provide insights into what's going on in our bodies, BBC reports. In Ancient Greece, ...

Lithium, the lightest metal on the periodic table, plays a pivotal role in modern life. Its low weight and high energy ...

Nasal mucus - simply known as snot - essentially acts like a shield to keep out harmful germs while also letting in things ...

Rich in vitamin C, oranges help boost the immune system and reduce the severity of cold symptoms. Pineapple. Contains bromelain, which can help reduce mucus and soothe a sore thro ...

Snot plays a powerful role in protecting us from disease – and its colour alone can provide insights into what's going on in ...

Allergic rhinitis, often called hay fever, mimics cold symptoms but isn’t caused by a virus or bacteria. Non-allergic rhinitis, triggered by irritants like smoke, strong odours, or weather changes, ...

Regular mucus tends to be thin and slippery, and it is generally a constant presence on a day-to-day basis. Meanwhile, phlegm ...

Simply coughing up yellow or green phlegm is not enough to tell. To diagnose a serious chest infection, your doctor will consider the whole picture of your symptoms.

The case for spitting Some people feel better if they spit out phlegm, especially if the phlegm is thick, sticky or irritates the throat. Spitting also lets you see what's coming up.

Some people feel better if they spit out phlegm, especially if the phlegm is thick, sticky or irritates the throat. Spitting also lets you see what’s coming up.

But phlegm is also evident in other medical conditions including asthma and allergies, bacterial infections, such as sinusitis, or with smoking or exposure to air pollution.