Heart patients should definitely limit their sucrose intake, but many of them are counseled only to avoid fat. Therefore, they tend to indulge themselves with fat-free goodies, in which some of the fat is replaced with corn syrup, a form of sugar. This ends up doubling the amount of sugar in the products. Unfortunately, one does not automatically lead to the other. The overconsumption of sugar has many side effects.
Sugar also raises the level of serotonin, a chemical found in the brain.
Initially this rise can make you feel good, but it quickly leads to drowsiness. If your serotonin levels are up when you need to be productive, you may not feel or perform at your best. The negative effect of elevated seratonin can be lessened by having your soft drink, candy, or sugary dessert with a meal rather than on an empty stomach. Sweet foods also play havoc with blood sugar levels, which also account for mood and energy swings. When you eat sugar or a sugary food, it enters the bloodstream very quickly, causing a high rise in your blood glucose and giving you a surge of energy.