![]() ![]() Again suggesting that there are these strong metabolic effects.Īnd then finally, there was a really good study that came out of the UK Biobank. So the people who got down to four and a half hours again consumed about 300 calories more and had actually no change in total fat, but more abdominal fat deposition, both superficial and deep fat, than the times where people were sleeping more. In this study, when people slept less, they consumed more. I guess the way I should have said the other article was, people consumed less when they got more sleep. ![]() And what they found was that the people they shortened sleep in, again, only over a couple weeks, shorter sleep was associated. But the lower amount of sleep was about four and a half hours. So they took them, they measured some stuff, and then they had randomized them to continue doing what you’re doing or less sleep, and then they flipped it. This was a really small number of people, something like 12, and what they did was they did a design where each person was their own control. They took a bunch of people, youngish-from my perspective-youngish healthier people, and they divided them up. There was another study in which they did the opposite. Now there’s about 300 fewer calories a day, but there was no intervention there around diet, but they were assessing diet in both groups.Īnd so this was an additional clue that going without sleep sort of somehow stimulates people to consume more. They actually wanted to get them even up higher, but they were able to get them a little bit more than an hour more of sleep a night, and over a really short-term study, just a couple weeks, what they noticed was that the people who were sleeping more consumed fewer calories. In one case, they took a bunch of people who were sleeping about six and a half hours a night, and what they did was they randomized them to an intervention that extended sleep for about half of them by about an hour or so. Two of them were focused on this issue of how sleep relates to obesity and waking. I mean, it’s not been my major academic focus, but going without sleep has been a major competitive advantage in trying to get work done, but it’s always been accompanied by a concern about what would it be doing to my health and what does it mean to deprive yourself of sleep.Īnyway, a couple articles have come out recently that I thought were terrific around illuminating some of the issues around sleep, and I thought I’d at least just share some of them. Harlan Krumholz: Howie, you may know that I’ve got this fascination about sleep and what the role of sleep is, why we need sleep. What has gotten your attention this week, Harlan? But first we’d like to check in on current health news. ![]() This week we will be speaking with Jason Schwartz, an associate professor in the Department of Health Policy and Management at the Yale School of Public Health. We are physicians and professors at Yale University, and we’re trying to get closer to the truth about health and healthcare. Harlan Krumholz: Welcome to Health & Veritas. ![]()
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