“…Of these described characteristic phenotypes, the problems most difficult to manage are hyperphagia; stubborn behavioral patterns; challenging, aggressive, oppositional and manipulative behaviours; food theft and lying, which become more frequent and severe with increasing age [8][9][10][11] . Parents and caregivers of people with PWS are routinely faced with two types of problems; the control of access to food to avoid and/or minimize other health problems (such as obesity, scoliosis, and cardiovascular and endocrine illnesses) 12 , and family burden, especially on the primary caregiver, due to the difficulties in the management of behavioral problems that start from early childhood 13,14,15 . Although scientific evidence has shown the neurobiological basis of the behavioral changes and patterns of hyperphagia, interventions which involve giving guidance to parents and caregivers in respect of parenting practices and the management of the children's behavioral problems are considered to be a priority; previous studies report that these interventions can not only improve a range of behavioral indicators in the children but also help support the caregiver in relation to the emotional difficulties they face [16][17][18][19][20][21] .…”