If a second concussion is sustained before complete recovery, it is more likely to trigger acute brain swelling, which can be ...

I N DOLLAR TERMS, America’s defence budget still towers over the rest—it is bigger than those of the next nine countries combined. But such comparisons reveal little about wha ...

In the trade war, China “adopted Mr Trump’s own tactic of maximum pressure”, responding to America’s extreme tariffs in kind, ...

Stories from Brazil, Russia—and under the sea ...