Ow can sport and physical activity be used to stimulate mental health

the work is a bachelor thesis and should be single-spaced. literature review should be used as the methodology. if a norwegian example can be used thats ok but not a neccessity. majority of the references should be from an online database such as proquest, science direct, where the instructors can have access. Here is a link with the common reference search engines:
?ID11287&etypeall should have abstract, intro, methodology, etc the ingredients of a thesis