[Q]: [Astrokeoccurswhenbloodisunabletoreachapartofthebrain.]
[A]: [A stroke occurs when blood is unable to reach a part of the brain.]
[Q]: [Wetravelalloverthelandingbeachesfromeasttowest.AsurrealsilencehangsovertheNormandybeaches,astravellersonpilgrimagestothisoldbattlefieldmixwiththepleasureseekersontheirseasideholiday.]
[A]: [We travel all over the landing beaches from east to west. A surreal silence hangs over the Normandy beaches, as travellers on pilgrimages to this old battlefield mix with the pleasure seekers on their seaside holiday.]
[Q]: [Long-termuseofcertainmedicines]
[A]:
[Long-term use of certain medicines]