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5 Negative Effects of Sugar on the Brain


Too much of anything can be bad for your health, sugar included. And while most people are aware of sugar’s negative effects on their waistline and heart, how it effects the brain is far less common knowledge.

Although the brain does require a certain amount of sugar in order to function properly, this type is known as glucose and is found naturally in foods like fruits and grains. It’s fructose, sugar that’s added to processed foods and beverages, that is of far more concern, as consuming excess amounts of it can have long-term negative effects—including these five.

1. Causes Cravings and Addiction

Sugar addiction is a real and growing concern for a large majority of the world’s population. But how exactly does this happen? The Huffington Post explains that when a person consumes sugar, the tongue’s taste buds become activated and send signals to the brain, “lighting up reward pathways and causing a surge of feel-good hormones, like dopamine, to be released.”

And while the source says stimulating these reward pathways with sugary treats is okay from time to time, over-activating them can lead to more serious concerns such as “loss of control, craving, and increased tolerance to sugar.”

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