JAMA Internal Medicine

Alzheimer's disease & dementia

Cataract surgery linked with lessened dementia risk: study

Cataracts affect most older adults at risk for dementia, and now researchers are finding strong evidence that cataract surgery is associated with a lower risk of developing dementia.

Diseases, Conditions, Syndromes

Immunity after COVID-19 illness may last at least 1 year

Long-term data from northern Italy—an area hit hard during the early days of the pandemic—suggests that reinfection after recovery from COVID-19 infection is very rare, and immunity in former patients could be long-lasting.

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