Dentistry

Special sensory cells in the gums protect against periodontitis

Newly discovered chemical-sensing cells in the gums protect the mouth by standing guard against infections that damage soft tissue and destroy the bone that supports the teeth, report researchers from the Monell Chemical ...

Diseases, Conditions, Syndromes

How to tell the difference between hay fever and the common cold

You wake up with a runny nose and, come to think of it, you've been sneezing more than usual. It feels like the start of a cold but it's October – the start of hay fever season – so what is the more likely affiliation?

Neuroscience

Scientists uncover new details in how sense of smell develops

Dogs, known for their extraordinarily keen senses of smell, can be trained to use their sensitive sniffers to find drugs, bombs, bed bugs, missing hikers and even cancer. Among dogs and other animals that rely on smell, at ...

Neuroscience

Why you smell better with your nose than with your mouth

The marked difference in how much better you recognize odors you breathe in than those that are released when you chew something can be explained by the workings of the epithelium cells that line the nasal cavity. This was ...

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