A rare but serious clotting disorder linked to certain COVID-19 vaccines and natural adenovirus infections has puzzled scientists for years.

Rare but dangerous blood clotting associated with that vaccine as well as AstraZeneca’s had a genetic cause, according to a new paper.

If you've ever accidentally sliced yourself on a broken glass or a piece of paper, you may have noticed that the bleeding can be hard to stop. Scientists have long wondered how the cascade of events ...

The low-calorie sweetener erythritol makes blood more prone to clotting. This may explain why it has been linked to a greater risk of heart attack and stroke in previous research in people. Erythritol ...