Whether you have a sweet tooth or not, sugar in one form or another is added to almost all packaged foods you buy. It is likely that you consume more sugar—perhaps even too much—without even realizing it. The question then becomes: how much sugar is excessive?
2. Lack of Energy and Fatigue
Orexins, a type of neuropeptide, play a role in the sleep-wake cycle. Sensitive to sugars, they react to glucose levels in the body. A slight increase in blood sugar can inhibit the transmission of neural signals by orexins, leading to a state of drowsiness. Thus, after the fleeting energy provided by sugar, a state of fatigue quickly follows due to the inhibition of these neurotransmitters.