For many people eating a little sugar stimulates a craving for more. Sugar can lead to intense feelings of hunger.
Sugar has addiction-like effects in the reward center of the brain, causing a loss of self-control, overeating and weight gain.
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Raised blood glucose damages blood vessels. Damaged blood vessels are a major cause of vascular complications of diabetes. It leads to injury to blood vessels in the brain and eyes and can lead to difficulty in learning, memory, motor speed and other cognitive functions.
The moderate consumption of artificial sweeteners can lead to weight loss as well as to less chances of getting a cancer. However, there are a few risks that one should take into account when consuming these products, such as metabolic syndrome and type 2 diabetes. The safest option would be to consume foods that contain sugar in their natural form, as whole fruit and as few as possible artificial sweeteners and sugar itself.
A diet high in sugar makes learning difficult by slowing the brain down. Overconsumption of sugar damages synaptic activity in the brain.
When you consume too much sugar, you could develop resistance to insulin, the hormone responsible for regulating the function of brain cells.