Fill in the Blanks Unit 3 Listening 3aOnline version An IELTS study listening exercises by John E 1 The heart is a . A diet high in can slow down the flow and lead to a heart problems . A heart attack is caused when an artery that blood2 to the heart becomes . Patients must be given immediately . A stroke is caused when there is a blockage in an artery that leads to the . A stroke can have a major effect on your body and as yet there is no . A healthy diet will keep your arteries and can lower the of a stroke or heart attack .