Mental Health

Poor Memory and Sugar Intake | impact of sugar on the brain


Sugar is a crystalline substance that is most popular in the world of sweeteners. It is used and promoted in almost all countries across the world. It is so common and widely used that it is known for giving a kick start to the day of millions of people. There is no group without a sweet lover.

Everything has its positive and negative attributes. Similarly, with sugar; it can harm your brain and overall health if consumed at a higher rate. The sugar consumption changes the amount of glucose level in your blood. This glucose, if exceeded from the required level, may cause cognitive impairment.

Do you wonder about how does sugar affects our brain?

The brain is the cognitive center of our body. Every action is under the control of the brain. Thus the brain requires the maximum amount of energy. Brain cells get this energy from the glucose in the blood. These major fluctuations in blood glucose levels affect the workability of the brain.

Are you the one who needs two more spoons of sugar in sweet drinks?

If yes, then you must be aware of the results of this added intake.


The increased level of glucose raises the risk of high blood pressure. This affects the delicate veins in the brain and hence the cognitive skills. A higher percentage of sugar intake can cause inflammation in the brain. According to a study published by Behavioural Brain Research increased amount of sugar stimulates the risk of inflammation. This may result in ceased cognitive activities of the brain.

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BNDF referred to as a brain-derived neurotrophic factor. It is an important protein in the brain and spinal cord. BNDF is involved in growth, maturation, and maintenance of nerve cells. The excess amount of sugar reduces the production of BNDF. This results in affected learning and analyzing skills

Impact of sugar on the brain


Changes in blood glucose level rise to changes in mood. Excessive sugar intake could be one of the reasons behind this. A person with acute hyperglycemia tends to face distress. According to a study published in Diabetes Care, type 2 diabetes makes you prone to anxiety. This is how sugar can affect your mood as well.


Does sugar deficit your memory?

Excessive sugar affects the memory of the brain. Some researchers show that sugar can work as a drug to the brain. Thus it can cause a deficit in memory and attention. Working memory is affected by excess sugar consumption. Lowering sugar intake and prioritizing proteins, Omega-3 fatty acids can help to boost your working memory naturally.


The human brain consists of a reward response system. This is the mechanism in which the lateral and ventromedial nuclei of the hypothalamus are involved. These regions use neurotransmitter dopamine to communicate. Increased level of sugar intake affects this reward response. This may result in an intense feeling of hunger. Overeating can result in obesity and imbalanced digestion. According to the research work by ‘American Journal of Clinical Nutrition’ high glycemic index affects the brain functions.


Frequent exposure of the brain to the high glucose level in the blood gradually damages the brain. The body could fall into the trap of diabetes, high blood pressure, and affected mental capacity. Hyperglycemia can damage delicate veins in the brain and eyes. This leads to various problems related to the brain and eyes. The person could lose self-control in such conditions.

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