Diseases, Conditions, Syndromes

Q&A: Foot rash and COVID-19

DEAR MAYO CLINIC: I am prone to hives and skin rashes, and I have severe eczema and other issues that prompted a recent visit to my dermatologist. She suggested that a rash on my feet was related to COVID-19. She also suggested ...

Ophthalmology

Smoking cannabis significantly impairs vision, study finds

A study carried out by the University of Granada indicates that smoking cannabis significantly alters key visual functions, such as visual acuity, contrast sensitivity, three-dimensional vision (stereopsis), the ability to ...

Neuroscience

How teeth sense the cold

For people with tooth decay, drinking a cold beverage can be agony.

Neuroscience

DNA damage 'hot spots' discovered within neurons

Researchers at the National Institutes of Health (NIH) have discovered specific regions within the DNA of neurons that accumulate a certain type of damage (called single-strand breaks or SSBs). This accumulation of SSBs appears ...

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