Institute for Green Exercise Research The Institute for Green Exercise Research (IGER) is an Ontario-based non-profit dedicated to generating evidence demonstrating the mental health benefits of physical activity in nature for everyone. Collaborate document librARY IGER's activities are structured around research, partnerships and knowledge translation to support evidence-informed policy and practice. Research Generating and synthesising evidence on green exercise and mental health. Partnership Collaborating with academic and community stakeholders. knowledge translation Sharing accessible insights to inform policy and practice.