A new blood test for Alzheimer’s disease can accurately detect people with early symptoms, research suggests.Experts from the Mayo Clinic in the US have provided further evidence that blood tests can ...

Alzheimer's disease, marked by memory loss, trouble concentrating and thinking, and changes in personality and behavior, ...

I spoke to experts about how to shop for at-home Covid tests, including how they work, who should use them and how accurate they are. I also rounded up FDA-authorized test kits you can purchase ...