The Lifespan Multimorbidity Research Collaborative (LINC) research project explores how neurodevelopmental conditions and genetic and environmental factors influence the development of physical and mental health conditions across our lifespan.he project brings together researchers and clinicians from the UK and Denmark studying multimorbidity across our lifespan. The project's Principal Investigator is Professor Marianne van den Bree who is based in the Centre for Neuropsychiatric Genetics and Genomics at Cardiff University.