If you do not feel well after the night of bad sleep, you may want to consider dehydration as the cause – not just the absence of sleep – and drink more water, according to a new study published in the journal SLEEP.
The study found that people who were sleeping only six o'clock at night rather than the recommended eight, were more dehydrated more often.
Dehydration can affect many body systems and functions, including cognition, mood, physical performance, and others. Long-term or chronic dehydration can lead to more serious problems, such as a higher risk of urinary tract infections and kidney stones.
For the study, researchers at Pennsilvania State Universities noted that sleeping affects the state of hydration and the risk of dehydration in adults from America and China. Participants who said they slept for six hours had significantly more concentrated urine and 16 to 59 percent more than they were inadequately hydrated compared to those who slept at night for eight hours.
The cause is how the hormonal system of the body regulates hydration.
Hormone vasopressin is released to regulate the hydration status of the body. It is published throughout the day, as well as during bedtime hours, which the researchers focused on this study.
"Vasopressin is released faster and later in the sleep cycle," said the author of the dr. Asher Rosinger, assistant professor of biological health in Penn State. "So, if you get older, you may miss that window where more hormones are released, which can lead to body hydration disorders."
Two adult samples were analyzed through the National Health and Nutrition Survey, and one sample was analyzed through the Kailuan Study in China. More than 20,000 respondents are involved in over three samples.
The participants reported their sleep habits, and also provided samples of urine analyzed by the researchers for biomarkers of hydration.
All data are obsessive both from cross-study or wavelength cross-sectional cohort studies; Therefore, the results of association should not be considered causative.
Future research should use the same methodology at different locations and examine this relationship in length over one week to understand the initial status of sleep and hydration, Rosinger said.
In the end, researchers suggest that hydration should be in the foreground of the first row in the morning after a bad night's sleep.
"If you get only six hours of sleep the night, it can affect your hydration status," Rosinger said. "This study shows that if you do not get enough sleep, and feel bad or tired the next day, drink extra water."
Source: Penn State