>> Dr. Terry Simpson: M
Speaker:Today we're going to talk about the fascinating topic of the
Speaker:GLP1 Agonist. You may know them by their generic
Speaker:names of ozempic or semaglutide
Speaker:or wegovy or zeppelin, and not for their
Speaker:effects on obesity as much as their effects
Speaker:on the brain and how
Speaker:those same centers of the brain may be
Speaker:related to addiction. It's an area that's
Speaker:gaining significant attention in the medical community and
Speaker:beyond. And, today we're going to talk
Speaker:about it.
Speaker:I am your Chief Medical Explanationist, Dr. Terry
Speaker:Simpson, and this is Fork U
Speaker:Fork University, where we bust myths and
Speaker:make sense of the madness and learn a little bit about
Speaker:food and medicine and their
Speaker:interaction.
Speaker:All right, let's get started.
Speaker:So for those of you who have been living Under a
Speaker:rock, GLP1 agonist
Speaker:stands for glucagon.
Speaker:Like polypeptide 1, which
Speaker:is a hormone that is normally made in the
Speaker:guts and plays a critical role in
Speaker:glucose metabolism and appetite
Speaker:regulation. The medications
Speaker:mimic this hormone and they have been
Speaker:synthesized in such a way that when they are
Speaker:injected, they last about a week.
Speaker:But what has really become intriguing is how
Speaker:these medications influence brain
Speaker:activity and behavior,
Speaker:particularly concerning reward
Speaker:addiction and what we now
Speaker:call food noise.
Speaker:So let's start with some basics. How these GLP1
Speaker:agonists, Stepbound, WeGovy, et cetera, work
Speaker:in your body. When you eat,
Speaker:GLP1 is released from your intestines.
Speaker:It helps to lower blood sugar levels by enhancing
Speaker:insulin secretion and reducing something
Speaker:called glucagon levels. But it doesn't stop
Speaker:there. It also signals the brain that
Speaker:you're full, meaning it's time to
Speaker:stop eating or that reduction of
Speaker:appetite. You feel
Speaker:appetite not in your stomach as much
Speaker:as you feel it in your brain.
Speaker:But recent studies have shown that these drugs not only help with
Speaker:the weight loss, but can modify how
Speaker:our, brains respond to that food related
Speaker:rewards, sometimes called a,
Speaker:hedonic response, standing for
Speaker:hedonism. In particular, there
Speaker:are GLP1 receptors found in several key
Speaker:areas of the brain, including the hypothalamus,
Speaker:which is crucial for appetite control, and the brain
Speaker:stem, which helps regulate basic physiologic
Speaker:function. To be more precise,
Speaker:if you want to be a little nerdy about it, the GLP1 receptors
Speaker:are present in the nucleus accumbens and the
Speaker:prefrontal cortex, regions of the
Speaker:brain's reward system.
Speaker:The nucleus accumbens is involved in
Speaker:processing pleasure and reward. And while
Speaker:the prefrontal cortex, or the front part of your brain,
Speaker:plays a role in this decision making and impulse
Speaker:control. By acting on these areas,
Speaker:GLP1 agonists alter how we perceive
Speaker:food rewards and cravings.
Speaker:Sometimes we call this
Speaker:food noise. And I want you to think
Speaker:about, let's say, Halloween, which recently passed.
Speaker:And if you have Halloween candy left over,
Speaker:you might get a hit eating the Reese's.
Speaker:Well, maybe that's just me, but knowing
Speaker:there are Reese's candies sitting up there, and
Speaker:if I get a little bit hungry, my brain
Speaker:starts thinking about the reward I get
Speaker:from when I eat that delicious piece of
Speaker:candy. Now, if you
Speaker:are under the influence of GLP1
Speaker:receptor and that area has been
Speaker:stimulated, you feel less reward
Speaker:for that candy, and there's less
Speaker:interest in going after that extra little bit
Speaker:of reward. But that constant
Speaker:feeling or that constant sensation, that
Speaker:that Reese's candy bar is up there or that there's
Speaker:leftover cheesecake or anything,
Speaker:is part of what we call food
Speaker:noise. Now, how might
Speaker:these medications influence
Speaker:addiction like nicotine or
Speaker:alcohol dependence? Some early research and
Speaker:a lot of anecdotal testimony indicate they might.
Speaker:For instance, one study in animals,
Speaker:the GLP1 agonists reduced alcohol
Speaker:consumption, meaning we had less drunk
Speaker:mice. But that was the first hint
Speaker:that these medications might be useful for those struggling
Speaker:with alcohol use disorder. But we have to approach this
Speaker:cautiously because addictions are complex and
Speaker:we really don't want to say food's an addiction. But clearly,
Speaker:food noise is something that is very hard for some
Speaker:people to control, like me with
Speaker:rhesus. Anecdotal evidence, though,
Speaker:has shown this. In a query of
Speaker:GLP1 users, people who use semaglutide or
Speaker:zembic wegovine, they all noted that they
Speaker:are drinking less alcohol and not driven to drink the
Speaker:alcohol. Some individuals quit smoking. Some
Speaker:individuals find that they just don't have an
Speaker:interest in coffee in the morning, which horrifies
Speaker:me. But be that as it, may, coffee is
Speaker:a perfectly acceptable, wonderful morning
Speaker:gift. But as we consider the effects of these
Speaker:GLP1 agonists, it's essential to understand
Speaker:the implications of targeting
Speaker:those brain regions. While
Speaker:dampening the reward response to food, it can aid in weight
Speaker:loss. That food noise is
Speaker:gone. It could also have an impact on other
Speaker:addictions. If GLP1 influences
Speaker:the dopamine release in the reward pathways, it
Speaker:opens up intriguing possibilities for addiction
Speaker:treatment and maybe raises some ethical questions
Speaker:as we blur the line between treating medical
Speaker:conditions and behavior.
Speaker:But for people who truly want to
Speaker:lose weight when they get upon the
Speaker:GLP medications, these aren't people that are
Speaker:morbidly obese. These are people that maybe have
Speaker:30, 40, 50 pounds to lose. They'll tell
Speaker:you they didn't even realize there was food noise going
Speaker:on in their brain until this
Speaker:now GLP1s act on the stomach. But we're today just
Speaker:talking about the brain. So personalized
Speaker:medicine is always the key in this discussion. Not everyone's going to
Speaker:respond to these GLP1 agonists in the same way.
Speaker:Genetics, environment, blah blah blah, they all shape
Speaker:how we process rewards and make choices.
Speaker:But they do offer a really
Speaker:interesting possibility, not only for treating weight
Speaker:loss and food noise, which
Speaker:clearly drives people with ultra processed food to
Speaker:want more. And this also
Speaker:changes perhaps one of the other ways we consider
Speaker:food. In the recent ultra
Speaker:processed food discussions, many people
Speaker:say, well there's not fiber in
Speaker:Doritos, for example, so therefore you can
Speaker:eat a whole family pack of Doritos and not feel
Speaker:full. So if we were to put
Speaker:fiber in Doritos, you might
Speaker:feel uncomfortable eating that family pack.
Speaker:But that doesn't change the reward center in your
Speaker:brain. That doesn't change your desire
Speaker:to have those Doritos.
Speaker:So my future prediction goes something
Speaker:like this. More researchers clearly need
Speaker:to understand the impact of the GLP1s on the
Speaker:brain. And probably we will get Some very
Speaker:specific GLP1 agonists
Speaker:for the brain to help people with food noise and
Speaker:reward.
Speaker:Anyway, I really hope that you've enjoyed
Speaker:Today's topic on GLP1. It's a
Speaker:fascinating topic that we have seen here on
Speaker:4Q. It is fascinating how those reward
Speaker:systems in the brain hack. My interest of
Speaker:course is in people who struggle with weight loss,
Speaker:but they may give us a key for
Speaker:addiction treatment in general. If you want
Speaker:to see the references associated with this, you
Speaker:can find it on forku.com or on my
Speaker:regular blog, which is yourdoctorsorders.com
Speaker:today's production is brought to you by.
Speaker:Well, me. No
Speaker:seriously, we're not asking for sponsors, but we do
Speaker:appreciate them. But thank you for listening. If you've enjoyed
Speaker:this, please give us a nice 5 star review.
Speaker:This has been distributed by our friends at Simpler Media and the
Speaker:Pod God Evotera. I'm Dr. Terry
Speaker:Simpson. This was written and researched
Speaker:by me. If you need medical
Speaker:advice, I'm not your doctor. Please
Speaker:find your own doctor. Specifically, I'd like you to find
Speaker:an obesity specialist. If you are
Speaker:concerned about your excess weight
Speaker:and want to have an impact with some of the
Speaker:new GLP1 agonists like Ozempic, WeGovy et
Speaker:cetera. There are plenty of people out there who are
Speaker:obesity specialists who are actually trained on obesity like the
Speaker:people@acomplishhealth.com until next
Speaker:time, keep questioning, keep learning, and
Speaker:remember to think critically about the
Speaker:choices that you make.
Speaker:Hey Evil, can you imagine?
Speaker:Food noise goes away. I wonder
Speaker:if I'd still like that Reese's candy bar though,
Speaker:to help with candy, I'm thinking about using it to fight
Speaker:the munchies.