The concept of, and link between, the heart and mind has been postulated for centuries and there is now a growing recognition of the connection between mental and cardiovascular health: that cardiovascular disease (CVD) and mental health problems are not only common companions, but that each can lead to the other (Chaddha et al., 2016; Cohen et al., 2015). For example, depression and anxiety are common in people with CVD and are consistently associated with lower quality of life, poorer somatic symptoms, higher mortality, and higher healthcare costs, with between 1 in 2 (Westermair et al., 2018) to 1 in 3 (Norlund et al., 2018) people with CVD meeting the criteria for an anxiety and/or depressive disorder and 1 in 5 (Westermair et al., 2018) receiving mental health care.