Dr. Theodore Wein and Dr. Jeff Habert discuss the recommendations of a new Heart & Stroke guideline on the use of acetylsalicylic acid (ASA), or Aspirin, for prevention of vascular events.Dr. Theodore Wein is a neurologist at McGill University and chair of the Heart & Stroke writing group that developed the guideline. Dr. Jeff Habert is a family physician in Thornhill, Ontario and a member of the guideline writing group. The Heart & Stroke guideline is published in CMAJ: www.cmaj.ca/lookup/doi/10.1503/cmaj.191599Heart & Stroke best practices site: www.strokebestpractices.ca/recommendations/ASA-for-preventionPodcast transcript: https://www.cmaj.ca/transcript-191599-----------------------------------Subscribe to CMAJ Podcasts on Apple Podcasts or your favourite podcast app. You can also follow us directly on our SoundCloud page or you can visit www.cmaj.ca/page/multimedia/podcasts.