Health

As gender row engulfs Olympic boxing, what is testosterone?

Algerian boxer Imane Khelif's swift defeat of her Italian opponent at the Paris Olympics on Thursday has sparked a row after she was disqualified from a previous competition over reportedly high levels of testosterone.

Diseases, Conditions, Syndromes

What do you know about Raynaud's disease?

In Raynaud's disease, smaller arteries that supply blood to your skin become narrow, limiting blood flow to affected areas. This causes some areas of your body, such as your fingers and toes, to feel numb and cold in response ...

Medical research

Disarming the immune system's lethal lung response

Neutrophils, the most abundant type of white blood cell, are the body's first line of defense against infection. Foreign pathogens can stress the body and activate neutrophils. When activated, neutrophils employ various weapons ...

Diseases, Conditions, Syndromes

Q&A: How to manage symptoms of liver disease

DEAR MAYO CLINIC: My husband is 45 and has lived with irritable bowel syndrome for many years. He was recently diagnosed with primary sclerosing cholangitis. Are these two conditions related? We were told a liver transplant ...

Cardiology

COVID infection, and vaccination, linked to heart condition

Investigators from the Smidt Heart Institute at Cedars-Sinai validated the link between a debilitating heart condition and COVID-19 and, to a lesser extent, a novel link between the same condition and COVID-19 vaccination.

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