Dr. Sarah Berry

And if we're eating out of sync with those clocks, those millions and trillions of clocks in our body, we know that we process the food slightly differently. We metabolize it slightly differently. It may have a different impact on our health. And that's what our research showed as well. So eating after nine o'clock isn't great for your health.

And if we're eating out of sync with those clocks, those millions and trillions of clocks in our body, we know that we process the food slightly differently. We metabolize it slightly differently. It may have a different impact on our health. And that's what our research showed as well. So eating after nine o'clock isn't great for your health.

Yeah, I mean, that's kind of a simple terms, what's sort of happening. You know, our body needs to rest overnight, just like our mind does. Our cells, our metabolism needs to rest overnight. And if you're not giving... your body, your cells, your metabolism, your gut microbiome, et cetera, that time to rest, things get disturbed a little bit.

Yeah, I mean, that's kind of a simple terms, what's sort of happening. You know, our body needs to rest overnight, just like our mind does. Our cells, our metabolism needs to rest overnight. And if you're not giving... your body, your cells, your metabolism, your gut microbiome, et cetera, that time to rest, things get disturbed a little bit.

And what's really interesting is you said that you'll feel different the next day if you eat late at night. There's some really fascinating research that came out about one or two years ago where they looked at giving exactly the same calories and foods over the day within the same time period and

And what's really interesting is you said that you'll feel different the next day if you eat late at night. There's some really fascinating research that came out about one or two years ago where they looked at giving exactly the same calories and foods over the day within the same time period and

But in one group of individuals having most of the calories earlier and in another group having most of them later in the day. Now, those that were having them later in the day woke up feeling more hungry, which is kind of like counterintuitive, isn't it? But it fits in with what you just said. Yet those people who were eating the calories earlier in the day woke up feeling less hungry.

But in one group of individuals having most of the calories earlier and in another group having most of them later in the day. Now, those that were having them later in the day woke up feeling more hungry, which is kind of like counterintuitive, isn't it? But it fits in with what you just said. Yet those people who were eating the calories earlier in the day woke up feeling less hungry.

And this is why as well the evidence shows early time-restricted eating, so time-restricted eating where you're eating within a particular time window, those people who are practicing earlier in the day tend to do better in terms of the health outcomes, whether it's weight, inflammation, cholesterol, than those practicing later time-restricted eating when they have their last eating event later in the day.

And this is why as well the evidence shows early time-restricted eating, so time-restricted eating where you're eating within a particular time window, those people who are practicing earlier in the day tend to do better in terms of the health outcomes, whether it's weight, inflammation, cholesterol, than those practicing later time-restricted eating when they have their last eating event later in the day.

And that's because they're eating in time with their body clocks, with these millions and billions of little cell clocks.

And that's because they're eating in time with their body clocks, with these millions and billions of little cell clocks.

So I think there's probably a lot going on there. It's getting a little bit outside my expertise, but I can certainly comment from work that we've done and I'm familiar with. So what we know is that sleep duration, sleep efficiency, what we also call sleep midpoint, so the midpoint at which you sleep, impacts your hunger levels. We know that your hunger...

So I think there's probably a lot going on there. It's getting a little bit outside my expertise, but I can certainly comment from work that we've done and I'm familiar with. So what we know is that sleep duration, sleep efficiency, what we also call sleep midpoint, so the midpoint at which you sleep, impacts your hunger levels. We know that your hunger...

And your fullness hormones change as you sleep. So we know that short sleepers, people who are getting up too early, so when you're getting up for your flight, then your hunger and fullness hormones might be perturbed. And we know that short sleepers, or if you've had a poor night's sleep, you tend to wake up more hungry than if you've had a good night's sleep. This isn't from my own research.

And your fullness hormones change as you sleep. So we know that short sleepers, people who are getting up too early, so when you're getting up for your flight, then your hunger and fullness hormones might be perturbed. And we know that short sleepers, or if you've had a poor night's sleep, you tend to wake up more hungry than if you've had a good night's sleep. This isn't from my own research.

I always have to caveat that. But this is what some of the research is showing. But that also, if you've had a poor night's sleep, you reach for less healthy food. And there's a study that was conducted at King's College London by my colleagues called the Slumber Study. And this really nicely illustrates how just changing how much you sleep can change your dietary choices.

I always have to caveat that. But this is what some of the research is showing. But that also, if you've had a poor night's sleep, you reach for less healthy food. And there's a study that was conducted at King's College London by my colleagues called the Slumber Study. And this really nicely illustrates how just changing how much you sleep can change your dietary choices.

And in the slumber study, they asked people who were short sleepers to practice sleep hygiene. They gave them no dietary advice. They just said, practice good sleep hygiene. No screens late at night, no physical activity, caffeine, alcohol, et cetera, late at night, darkened room. And then they just monitored lots of different things in these individuals.

And in the slumber study, they asked people who were short sleepers to practice sleep hygiene. They gave them no dietary advice. They just said, practice good sleep hygiene. No screens late at night, no physical activity, caffeine, alcohol, et cetera, late at night, darkened room. And then they just monitored lots of different things in these individuals.