Restless night: coffee can disturb the metabolism.

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In the current research work, the effects of sleep disorders and morning coffee on a number of different metabolic markers were investigated. It was shown that a night with sleep problems alone has only limited effects on metabolism, but drinking coffee after sleep can have a negative influence on the control of blood sugar levels.

The consumption of coffee after a night of sleep disturbances seems to be able to trigger blood sugar problems, according to the results of a new study involving researchers from the University of Bath. The results can be read in the English language journal “British Journal of Nutrition”.

Keeping blood sugar levels under control

According to a recent study, anyone who has had a restless night should not drink coffee before breakfast. This can disturb the metabolism.

Since it is important to keep blood sugar levels within a safe range in order to reduce the risk of diseases such as diabetes and heart disease, morning coffee could have far-reaching effects on health.

For the study, 29 healthy men and women were asked to undergo three different overnight experiments in random order. In one of the experiments, the participants had a normal night’s sleep and were asked in the morning to wake up with a sugary drink with an energy content (calories) equivalent to what they would normally consume for breakfast.

Link between sleep and blood sugar

In another experiment, the participants’ sleep was deliberately disturbed (the researchers woke them up every hour for a period of five minutes) and in the morning after waking up they were given the same sugary drink.

In each of these tests, blood samples were taken from the participants after the sugary drink and their blood sugar levels were measured.

In the third option, sleep disorders were also simulated and the participants were given a strong black coffee 30 minutes before consuming the sugary drink.

Strong black coffee drunk before breakfast thus increased the blood sugar response to breakfast by about 50 percent. Although population surveys suggest that coffee can generally be associated with good health, they also support the suspicion that caffeine has the potential to cause insulin resistance.

The results show that one night of sleep disturbance alone did not worsen the participants’ blood sugar-insulin response to the sugary drink. However, starting the day after a poor night’s sleep with a strong coffee had a clearly negative effect on glucose metabolism, the experts summarize.

Coffee after a night with sleep disorders

Previous research already suggested that the loss of many hours of sleep over one and/or several nights can have negative metabolic effects. The researchers stress that it is reassuring to see that a single night of sleep problems does not have the same effect. The coffee afterwards, however, could have unfavorable consequences.

WashingtonNewsday Health and Wellness.

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