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Your brain on sugar

We love sweet treats . But too much sugar in our diets can lead to weight ____________________ and obesity , Type 2 diabetes and dental ____________________ . We know we shouldn ? t be eating candy , ice cream , cookies , cakes and drinking sugary sodas , but sometimes they are so hard to ____________________ . It ? s as if our brain is ____________________ to want these foods .

Your body runs on sugar ? glucose to be precise . Glucose comes from the Greek word glukos which means sweet . Glucose ____________________ the cells that make up our body ? including brain cells ( neurons ) .

On an evolutionary basis , our primitive ancestors were scavengers . Sugary foods are excellent ____________________ of energy , so we have evolved to find sweet foods particularly ____________________ . Foods with unpleasant , bitter and sour tastes can be ____________________ , poisonous or rotting ? causing sickness .

So to ____________________ our survival as a species , we have an ____________________ brain system that makes us like sweet foods since they ? re a great source of energy to fuel our bodies .

When we eat sweet foods the brain ? s ____________________ system ? called the mesolimbic dopamine system ? gets ____________________ . Dopamine is a brain chemical ____________________ by neurons and can ____________________ that an event was positive . When the reward system fires , it ____________________ behaviours ? making it more likely for us to ____________________ out these actions again .

Dopamine ? hits ? from eating sugar ____________________ rapid learning to ____________________ find more of these foods .

Our environment today is ____________________ with sweet , energy rich foods . We no longer have to ____________________ for these special sugary foods ? they are ____________________ everywhere . Unfortunately , our brain is still functionally very similar to our ancestors , and it really likes sugar . So what happens in the brain when we ____________________ consume sugar ?