Anna Karin Hedström

Leisure-time physical activity, sun exposure, and multiple sclerosis risk: a population-based case–control study

Abstract Background Physical activity benefits symptoms and function in people with multiple sclerosis (MS), but its relevance to MS susceptibility remains uncertain and may be difficult to separate from correlated lifestyle and environmental factors, including sun exposure. Meth...

Sleep disturbances as early indicators of incident psychiatric disease

PURPOSE: Sleep disturbances are common in individuals with psychiatric diseases and may emerge years before diagnosis. It remains unclear whether they reflect modifiable risk factors or early manifestations of psychiatric illness. We aimed to investigate how different sleep dimen...

HLA-dependent association between EBNA1 antibody levels and disability progression in multiple sclerosis

Background Epstein-Barr virus (EBV) is strongly implicated in the development of multiple sclerosis (MS) but whether EBV-related immune responses are also relevant for disease progression after diagnosis remains unclear. We investigated whether Epstein-Barr nuclear antigen 1 (EBN...