Does nocturnal hypoglycaemia really improve quality of life?

To the Editor: We read with great interest the recent article by Henriksen et al. [1], the aim of which was to ‘assess the effect of spontaneous nocturnal hypoglycaemia on quality of life and mood during subsequent days’ in adults with type 1 diabetes. The authors concluded that ‘individuals with type 1 diabetes and impaired hypoglycaemia awareness reported higher quality of life on days preceded by nights with asymptomatic (but not symptomatic) hypoglycaemia’ [1]. We think there may be other possible interpretations of the data, which indicate an urgent need for further research. [Opening paragraph]