Warning Sign in Bed: What Do Yellow Stains on Your Pillow Mean? Story by Samir Sebti • 2mo. Y ellow stains on pillows are a ...

In the early 1990s, the Caltrans worker was tasked with creating a road sign to alert drivers to the possible danger. Silhouetted against a yellow background and the word “CAUTION,” the sign ...

According to doctors, what seemed like several unrelated issues turned out to be the classic signs of yellow nail syndrome or YNS—a rare condition that affects less than one in every 1,000 people.

DOCTORS were shocked to discover a man’s yellowing nails were a sign of a tumour squishing his lungs and heart. The 73-year-old suffered from breathlessness, discoloured nails, and leg swelli… ...