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Do you have a friend who just… inhales their food?
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You know what I mean?
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Like, you've had one bite and their whole burrito is like gone?
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What are you doing, man?
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Did you even taste it?
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Turns out, she probably didn't.
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Hey there, foodies. Trace here for DNews. Thanks for tuning in.
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Food is incredible. I love it. I love to eat it, I love to cook it, I love to shop (for) the ingredients!
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There's nothing worse than spending hours shopping, prepping, cooking, and serving, just to have somebody scarf the whole thing in three bites.
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And a new study confirms what I knew in my little foodie heart… people who eat super fast, don't actually taste their food, not really.
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The study was published in the Proceedings of the National Academy of Sciences under
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the appetizing title, "Optimal directional volatile transport in retronasal olfaction,"
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because science, while great at mise en place, has no sense of presentation. Translating
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the title into layman: they wanted to know how smells got to our nose, from the outside
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or the INSIDE. And their study found, the latter was actually more important. Our tongue
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tastes five (maybe six) flavors, but food can have any number of smells to add to those
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perceptions!
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Using a model of the human mouth, throat and nasal cavities, researchers found when we
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inhale through the nose, we create an "air curtain" which keeps volatile -- or airborne
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-- molecules from going into the lungs. But, when we exhale, food volatiles trapped in
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the back of the throat swirl upward into the nasal cavity, where we sense them with our
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olfactory systems!
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If you eat fast, the air curtain doesn't form, the volatiles don't have time to get trapped
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in the back of your throat, and thus you don't smell and taste together!
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There's definitive science for slowing down to savor a meal, for sure.
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Sometimes, you just want a good scarf, a satisfying guzzling of comforting carbohydrates can make
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us feel really good once in a rare while, but making a habit of it is the dangerous.
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This MAY be supported by a 2006 study of nearly 5000 people in the Journal of Epidemiology
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which found, the rate of food intake heavily correlated with rate of obesity!
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And another study in the Journal of American Dietetic Association discovered, when people
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eat fast, they take in more calories, but feel less satisfaction from their meal!
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If you look at how complicated our alimentary canal really is, this makes more than a mouthful
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of sense.
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The stomach is a highly connected organ in the human body. It has a direct connection
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along the vagus nerve right to the brain stem. When you put food in your belly, the stomach
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has mucosa and muscles which detect the mechanical feel and overall volume of food, as well as
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how much the stomach compressed or stretched. When it's empty, a hormone called ghrelin
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is secreted -- called the hunger hormone, to trigger appetite. Once you eat, the stomach
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stretches, and ghrelin is suppressed; causing your vagus nerve to signal your brain stem…
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and that signal tells the intestinal train to get moving!
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Obviously, this is SUPER simplified, there are hormones, enzymes and nerves being tripped
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and squirted all over the tube running through the middle of your body, but like that corn
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you ate yesterday… let's try to get through this in one piece.
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Next, food moves into the intestine and another hormone called leptin comes into the picture.
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Leptin is one piece of the nutrient satiation puzzle, the idea that what you're eating has
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fulfilled your body's nutritional requirement. Scientists don't entirely understand the whole
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thing, but they know, as food continues through the system, the ileum, colon and rectum will
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cause secretion of MORE hormones called PYY. A 2006 study found, when mice were deprived
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of PYY, they wouldn't control their intake, and became obese!
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So scientists figure, PYY (along with all these other hormones, nerves and triggers)
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eventually work together to tell your brain OKAY Y'ALL. WE'RE GOOD DOWN HERE. STOP EATING.
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[[whew!!]]
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Complicated, no?
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It's important to be cognizant of the fact, humans are not robots. Many people try and
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control every aspect of their lives, including eating to take in calories, but being mindful
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of WHAT you're eating, is just as important as HOW you're eating. When we eat like a machine,
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our body doesn't have time to suppress or secrete these myriad of compounds, or trigger
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these processes. It takes time for this sack of meat to know when it's got food in it!
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So, science says it's best to eat slowly. You'll taste your food better, you'll decrease
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your portion sizes, and feel better about what you've eaten!
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You might even lose weight!
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Don't eat TOO slow… if you eat so slow that you stop eating altogether you'd eventually
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die. Eventually… ever curious about what would happen in between?
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So was I!
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How long could we survive without food or water?
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Don't worry, we DNewsed it.
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Do you eat fast?
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Why?
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Don't tell me you're punching your brother or sister for a seat at the table. Think about
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it for a second and answer with something introspective, why do you think eat at the
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speed you eat?