Research by Warwick Medical School at the University of Warwick has found that sleep deprivation is associated with an almost a two-fold increased risk of being obese for both children and adults.
Early results of a study by Professor Francesco Cappuccio of the University of Warwick's Warwick Medical School were presented to the International AC21 Research Festival hosted this month by the University of Warwick.
The research reviewed current evidence in over 28,000 children and 15,000 adults. For both groups Professor Cappuccio found that shorter sleep duration is associated with almost a two-fold increased risk of being obese.
The research also suggests that those who sleep less have a greater increase in body mass index and waist circumference over time and a greater chance of becoming obese over time.
This result is consistent with other studies. See my previous posts Lack Of Sleep Linked To High Blood Pressure, Other Risks and Sleep A Lot To Avoid Burn-Out From Stress And To Stay Skinny.
In the new work, the researchers studied the influence of sleep on declarative memory in healthy, college-aged adults. The results demonstrated a robust effect: Compared to participants who did not sleep during the trials, those who slept between learning and testing were able to recall more of the original words they had learned earlier. The beneficial influence of sleep was particularly marked when participants were presented with the challenge of "interference"--competing word-pair information--just prior to testing. A follow-up group further demonstrated that this sleep benefit for memory persists over the subsequent waking day. This work clarifies and extends previous study of sleep and memory by demonstrating that sleep does not just passively and transiently protect memories; rather, sleep plays an active role in memory consolidation.
I wonder whether people could learn more if they napped a few times a day between learning exercises.
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