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Written by Navneet Kaur, M.Sc. Nutrition & Dietetics
Diet
Sugar is a ubiquitous ingredient in many of the foods and beverages we consume daily. While it can provide a quick source of energy, excessive sugar consumption can have detrimental effects on various aspects of our health, including the brain.
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Excessive sugar intake has been linked to cognitive impairment and a decline in cognitive function. High-sugar diets may impair memory and cognitive flexibility.
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Research suggests that a high-sugar diet may increase the risk of neurodegenerative diseases like Alzheimer's and dementia due to chronic inflammation and insulin resistance in the brain.
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Sugar consumption can lead to rapid spikes and crashes in blood sugar levels, which can contribute to mood swings and irritability.
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Sugar can trigger the release of dopamine, a neurotransmitter associated with pleasure and reward. This may lead to a cycle of craving and addiction-like behaviour, where individuals constantly seek out sugary foods.
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High sugar intake has been associated with changes in brain structure, particularly in the hippocampus, which is crucial for memory and learning.
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Excess sugar consumption can promote inflammation in the brain, which has been linked to a variety of neurological and psychological conditions.
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Sugar may hinder the brain's ability to adapt and change, known as neuroplasticity, which is essential for learning and memory.
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There is evidence to suggest that a diet high in sugar may increase the risk of developing mood disorders such as depression and anxiety.
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High sugar intake in children has been associated with poorer academic performance and attention problems, potentially affecting their long-term cognitive development.
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Excessive sugar consumption can lead to insulin resistance, which can affect glucose uptake by brain cells and impair their function.
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While sugar is a natural part of many foods and can be enjoyed in moderation, the effects of excess sugar on the brain are a cause for concern. It is essential to be mindful of our sugar intake and strive for a balanced diet that supports both our physical and mental well-being.
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