India, June 17 -- We check expiration dates on food, medicine, and skincare products, but have you considered whether your pillow expires too? You use your pillow every night, spending hours in contact with it. Over time, pillows can wear down, gather dust, and lose their support.

Orthopaedic surgeon Dr Rahul Modi tells Health Shots, "You should replace your pillows regularly after a certain interval. Not changing your pillows can harm your sleep and health."

Pillows should have an expiration date. They touch your face and mouth for 8 to 10 hours a day, so they gather dead skin cells, drool, bodily fluids, oils, and dust mites. "Many pillows use synthetic materials, such as polyurethane foam, which can break down over time and release h...