The Holly Health approach to behaviour change is based partly on a cognitive behavioural therapy approach called 'behavioural activation'. Behavioural activation is a type of therapeutic intervention (most often used to treat depression) that focuses on behavioural changes in a client's daily life. It encourages new behaviours which are enjoyable, motivational, and help the individual to make progress towards their longer term goals. Behavioural activation is practical, simple, and very adaptive, it can involve any behaviours, as long as they are positive and useful to the individual.
Other important components of the Holly Health approach stem from evidence-based psychological interventions like Cognitive Behavioural Therapy (CBT), Acceptance and Commitment Therapy (ACT) and Mindfulness-Based Interventions.
The COM-B Model of behaviour change (Michie et al. 2011) describes the relationship between capability, opportunity, and motivation, and the requirement for all three to be in place in order for behaviour change to occur. Additionally, Holly Health also adopts the principle of 'hinging', encouraging customers to tag new habits onto actions they already complete each day (e.g. brushing your teeth), to make it easier to incorporate a new habit consistently.