People with prediabetes who are more active in the morning tend to have lower BMI and a lower risk of developing type 2 diabetes than ‘evening people’. The US study reviewed a group of people with prediabetes and found that ‘morning people’ – those who do activities and eat earlier in the day – had lower BMI than those with an ‘evening preference’ – who would wake later, eat later in the evening and go to sleep later.”
Source: Morning preference and better sleep linked to reduced type 2 diabetes risk