Dr. Sébastien Grenier is a clinical psychologist, research fellow (FRQS) at the research centre of the Institut universitaire de gériatrie de Montréal, and Director of the Laboratory on studies of late-life anxiety and depression (LEADER). His research concerns the benefits of cognitive-behavioural therapy (CBT) in treating late-life anxiety and different associated disorders, including depression, cognitive disorders and fear of falling. Dr. Grenier was in private practice for about ten years at the Laval anxiety clinic before becoming a professor.