Stress and mental health in the UK causes a loss in productivity estimated to cost employers £33 – 42 billion.  Mental Health Ambassadors are a welcome development in the workplace, especially for Mental Health First Aid, however Line Managers are one of the most important influences on employee wellbeing and are best placed to invest in their people.  Line Managers can be the most effective people to proactively build employee resilience which leads to reduced absenteeism, increased motivation and better staff retention.