A stroke, or "brain attack," occurs when blood circulation to the brain fails. Brain cells can die from decreased blood flow and the resulting lack of oxygen.

Time to defibrillation is a critical determinate of survival and neurological recovery.

Increasing evidence suggests an interplay between the gut microbiome and nonalcoholic fatty liver disease (NAFLD). The role of the microbiome in the early detection of the condition remains unclear.

What would my 23-year-old self have made of my 63-year-old self moderating a session on the end of AIDS as a public health threat...