During pregnancy and in the year after birth women can be affected by a range of mental health problems, including anxiety, depression and postnatal psychotic disorders. These are collectively called perinatal mental illnesses. Perinatal mental illnesses affect between 10 and 20% of women and, if untreated, can have a devastating impact on them and their families. When mothers suffer from these illnesses it increases the likelihood that children will experience behavioural, social or learning difficulties and fail to fulfil their potential. Early detection improves society’s ability to support those susceptible to post-partum depression. Feelings of “being a bad mother” and a fear of the child being taken away lead to a reluctance to seek help. Perinatal Mental Illnesses can lead to social exclusion and reluctance to return to work, which comes at a huge cost to the countries’ healthcare and social systems. Perinatal depression, anxiety and psychosis carry a total long-term cost to society of about £8.1 billion for each one-year cohort of births in the UK. This is equivalent to a cost of just under £10,000 for every single birth in the country. 72% of this cost relates to adverse impacts on the child rather than the mother. PATH will work to prevent postpartum depression, something that is more cost-effective than medically treating established issues. By working directly with existing patients, pregnant women and mothers, as well as professionals, the project will create a demand driven and self-sustaining secure community support system which will recreate traditional community cohesion that leads to much lower rates of PMI in other parts of Europe. PATH will also tackle the previously unaddressed issue of the stigma and lack of awareness surrounding PMIs via a multi-media campaign. The project will take a holistic approach to the issue by targeting not only young women and new mothers but also health care professionals and employers as well as encouraging inter-generational support.