Dr. Matthew Walker

That's how they measure the amount of sleep, as it were, poorly as it is. Those people who are in bed for 10 hours died sooner. Yeah. Yeah. Yeah. But to come back to it, this Harvard study then looked at how much of different stages of sleep people were getting across the lifespan because they were able to do this with fancy sort of technology.

That's how they measure the amount of sleep, as it were, poorly as it is. Those people who are in bed for 10 hours died sooner. Yeah. Yeah. Yeah. But to come back to it, this Harvard study then looked at how much of different stages of sleep people were getting across the lifespan because they were able to do this with fancy sort of technology.

That's how they measure the amount of sleep, as it were, poorly as it is. Those people who are in bed for 10 hours died sooner. Yeah. Yeah. Yeah. But to come back to it, this Harvard study then looked at how much of different stages of sleep people were getting across the lifespan because they were able to do this with fancy sort of technology.

And what they found was that when they put non-REM sleep, again, in the same statistical model with REM sleep, REM sleep beat out deep non-REM sleep in humans to predict your all-cause mortality. And here, it wasn't this reverse J shape. like total sleep duration, which is once you get past nine hours, it starts to hook back up.

And what they found was that when they put non-REM sleep, again, in the same statistical model with REM sleep, REM sleep beat out deep non-REM sleep in humans to predict your all-cause mortality. And here, it wasn't this reverse J shape. like total sleep duration, which is once you get past nine hours, it starts to hook back up.

And what they found was that when they put non-REM sleep, again, in the same statistical model with REM sleep, REM sleep beat out deep non-REM sleep in humans to predict your all-cause mortality. And here, it wasn't this reverse J shape. like total sleep duration, which is once you get past nine hours, it starts to hook back up.

No, with REM sleep, the less and less that you had, the worse and worse your mortality risk. It was a linear relationship. And so across animals, across human beings, REM sleep seems to have been, if you want to do the math, which I wouldn't argue for anyone to do, if there is one stage of sleep that's mortality more important than the other.

No, with REM sleep, the less and less that you had, the worse and worse your mortality risk. It was a linear relationship. And so across animals, across human beings, REM sleep seems to have been, if you want to do the math, which I wouldn't argue for anyone to do, if there is one stage of sleep that's mortality more important than the other.

No, with REM sleep, the less and less that you had, the worse and worse your mortality risk. It was a linear relationship. And so across animals, across human beings, REM sleep seems to have been, if you want to do the math, which I wouldn't argue for anyone to do, if there is one stage of sleep that's mortality more important than the other.

it would be REM sleep, which is also the reason maybe to raise caution regarding alcohol and then maybe THC.

it would be REM sleep, which is also the reason maybe to raise caution regarding alcohol and then maybe THC.

it would be REM sleep, which is also the reason maybe to raise caution regarding alcohol and then maybe THC.

Talk to me about CBD, THC. It's been marketed for a while separately and together as solutions. What's the truth behind it?

Talk to me about CBD, THC. It's been marketed for a while separately and together as solutions. What's the truth behind it?

Talk to me about CBD, THC. It's been marketed for a while separately and together as solutions. What's the truth behind it?

So THC and CBD, I think they've gone through a real evolution. THC, for the most part, I think the data is fairly robust. It's just not going to be your friend when it comes to sleep. It is very clearly helping people fall asleep faster. And I think that's something that we can come back to in a second.

So THC and CBD, I think they've gone through a real evolution. THC, for the most part, I think the data is fairly robust. It's just not going to be your friend when it comes to sleep. It is very clearly helping people fall asleep faster. And I think that's something that we can come back to in a second.

So THC and CBD, I think they've gone through a real evolution. THC, for the most part, I think the data is fairly robust. It's just not going to be your friend when it comes to sleep. It is very clearly helping people fall asleep faster. And I think that's something that we can come back to in a second.

The problem with THC first is that you build up a tolerance and a dependence on it, a psychological dependence. And what happens is that when you stop using THC for sleep, Not only do you go back to the bad sleep that you are having because of the dependency, you typically have a withdrawal and your sleep is even worse as a consequence.

The problem with THC first is that you build up a tolerance and a dependence on it, a psychological dependence. And what happens is that when you stop using THC for sleep, Not only do you go back to the bad sleep that you are having because of the dependency, you typically have a withdrawal and your sleep is even worse as a consequence.