At this point, most people understand the basic effects of subsisting on junk food. We’d be hard pressed to find someone who thinks eating a bowl of broccoli is the same as eating a bowl of candy (though doing either will undoubtedly wreak havoc on the human digestive system). But simply knowing that junk food is bad -- or even knowing how it’s bad -- doesn’t make it any less tempting. Humans have a natural predilection for high-fat, high-sugar foods, and if those ingredients are combined into one magical dish, resistance is practically futile.
Even the healthiest among us have to give in to a cake craving every now and then; it’s normal and won’t do much damage in moderation. The only problem is when we take the craving too far (i.e., eat too much) and end up feeling less than optimal. What happens within our bodies when we eat an excess of sugar that causes such extreme reactions?
This Is Your Body on Cake
When it comes to celebrating, nothing completes the occasion like a rich, perfectly sweet slice of cake. Each bite tastes great going down, but the effects it has on our insides are far less appetizing.
1. Energy Spike and Crash
We digest cake almost immediately because it’s composed primarily of simple sugars that require little breakdown. Consuming a bunch of them causes a huge rush of glucose (what sugar is broken down to) into the blood, and the pancreas releases extra insulin to turn the glucose into glycogen, which the liver and muscles use up.
After the sugar rush, blood sugar levels drop dramatically, triggering the release of stress hormones like adrenaline and cortisol to activate stored sugar supplies. Stress hormones raise our heart rate, make our stomachs clench in anticipation of an attack, and leave us shaky and nauseated once our bodies realize there’s no danger to respond to.
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