Several scientific studies have demonstrated how excess sugar damages the human body over time. Diseases like diabetes are one of the many dangerous side effects. As a result, you must monitor your daily sugar intake rigorously. We can do so by having a healthy and balanced meal plan and indulging in an active lifestyle. Here are specific symptoms you must watch out for to know if your sugar intake has increased.  Signs that you’re consuming excess sugar: Constant craving for sugary things The reward center in your brain activates when you ingest some food or drink containing sugar. When sugar enters your body, your brain responds to dopamine, also known as feel-good chemicals. To put it simply, the brain informs your body that it feels good and wants more of that sweet-tasting thing. The issue with such a feeling is that your brain gets addicted to it over time and starts craving more. This is similar to how you develop an alcohol tolerance and need more of it to feel the buzz. Feeling lethargic throughout the day The pleasure of the sweet taste spikes your insulin, which makes the brain happy. But after this initial high, it is inevitable for your brain to come down and feel low.