Wednesday , June 23 2021

Less sleep connected to morning softening

If you do not feel good after a night of bad sleep, you may want to consider dehydration as a cause – not just the lack of sleep – and drink more water, according to a new study published in the newspaper SLEEP.

The study showed that individuals who only slept six hours at night, rather than those recommended eight, were more prone to being dehydrated.

Dehydration can affect many of the body's systems and functions, including cognition, mood, physical performance and others. Long term or chronic dehydration can lead to more serious problems, such as greater risk of urinary tract infections and kidney stones.

For the study, Pennsylvania State University researchers observed how sleep affected hydrogenation conditions and the risk of dehydration of American and Chinese adults. Participants who reported to sleep six hours had significantly more concentrated urine and 16 to 59 percent higher odds to be insufficiently hydrated compared to those who slept regularly for eight hours at night.

The reason was related to how the body's hormonal system regulates hydration.

The hormone vasopressin is released to regulate the body's hydration status. It is released all day, as well as during the night, which is what the researchers focused on for this study.

"Vasopressin is released sooner and later in the sleep cycle," said lead writer, Dr. Asher Rosinger, Assistant Professor of Bio-Behavioral Health at Penn State. "So, if you wake up earlier, you may miss the window where more of the hormone is released, causing a disruption to the body's hydration."

Two samples of adults were analyzed by the National Health and Nutrition Examination Survey and a sample was analyzed by the Chinese Kailuan Study. More than 20,000 patients were included in the three tests.

The participants reported their sleepy habits and also gave urine samples that were analyzed by researchers for the hydration of biomarkers.

All data are observational and from cross-sectional studies or a cross-sectional view of a cohort study; Therefore, the association results should not be considered as causal link.

Future research should use the same method at different locations and investigate this relationship in the long term for a week to understand the baseline sleep and hydration status, said Rosinger.

In summary, the researchers suggest that hydration should be in the forefront of your mind first in the morning after a bad night's sleep.

"If you only get six hours of sleep one night, it may affect your hydration status," said Rosinger. "This study suggests that if you do not get enough sleep, and you feel bad or tired the next day, drink extra water."

Source: Penn State

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