The Stroke Association promote a purple month of May to raise awareness of strokes:

• their impact on the daily lives of those who have had a stroke,
• the impact of strokes on friends and families,
• the importance of knowing the signs and symptoms of strokes,
• what causes strokes,
• what happens during a stroke, and
• what to do in the event of someone suffering a stroke.

Read more: https://www.stroke.org.uk/take-action/make-may-purple