The Great-West Life Centre for Mental Health in the Workplace has a website that contains a lot of helpful and interesting information on creating mental health strategies in the workplace.
The link below features a number of short videos that deal with these issues and may be helpful to members who affected by friends, family or co-workers who are struggling with mental health problems, or may themselves be dealing with their own mental health issues.
Visit: http://www.workplacestrategiesformentalhealth.com/wti/HomePage.aspx
There are support systems and resources available to help. Contact your union representative because nobody has to struggle alone.