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Staying up later increases diabetes risk

(dr) Matthew T Rader

Individuals who stay up later are at a higher risk of developing type 2 diabetes and heart disease, a new study has revealed.

In this new investigation, the results of which were recently published in Experimental Physiology, 51 people participated, aged around 50 and with a sedentary lifestyle, divided into two groups: those who went to bed early and those who went to bed late. They had no illnesses but had symptoms such as high blood pressure, high fasting glucose or increased waist circumference.

Participants were followed for a week to determine their level of physical activity, after which they underwent metabolic tests.

The results revealed that “daytime” people were more sensitive to insulin and had better results in using fat for energy. In contrast, “night-time” people relied more on processing carbohydrates for energy and showed signs of insulin resistance.

“The differences in fat metabolism between” the two groups “show that our body’s circadian rhythm can affect how our bodies use insulin,” said Steven Malin, a researcher at Rutgers University in the United States (USA) , and one of the authors of the study.

“A sensitive or impaired ability to respond to insulin has major implications for our health,” he added. The team concluded that metabolic differences may make night-time people more susceptible to cardiovascular disease and type 2 diabetes.

However, there are some warnings regarding conclusions. Monitoring physical activity prior to the metabolic tests showed that “daytime” people were more active than “nighttime” people.

In this sense, are the metabolic differences between the two groups a reflection of differences in physical activity? Or will physical activity be more metabolically beneficial when performed in the morning?

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“More research is needed to determine the relationship between the chronotype and [sincronização do ritmo circadiano]exercise and metabolic adaptation to identify whether physical exercise performed earlier has greater benefits for health,” noted Steven Malin.

ZAP //

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