Hypoglycemia commonly causes brain fuel deprivation, resulting in functional brain failure, which can be corrected by raising plasma glucose concentrations. Rarely, profound hypoglycemia causes brain death that is not the result of fuel deprivation per se.
Can you get brain damage from low blood sugar?
Both hypoglycemia and hyperglycemia can cause brain injury. However, the way these two conditions cause neurological damage does differ. In general, hypoglycemia (low blood sugar) is much more dangerous. Extremely low blood sugar can do permanent damage and cause a severe acquired brain injury (ABI) in a short time.
How does hyperglycemia affect the brain?
Hyperglycemia also adversely affects the ischemic brain by disrupting the blood-brain barrier and promoting cerebral edema. In their study of rats with hemorrhagic stroke and hyperglycemia, Song et al. (2003) found that hyperglycemia-induced brain injury resulted in increased free radical formation.
How does hyperglycemia and hypoglycemia affect your brain?
The Dangers of High Blood Glucose
“With diabetes, you have an increased risk of damage to blood vessels over time, including damage to the small blood vessels in the brain. This damage affects the brain’s white matter,” says Joseph C. Masdeu, MD, PhD, of the Houston Methodist Neurological Institute.
What happens in the body during hypoglycemia?
Because the brain depends on blood sugar as its primary source of energy, hypoglycemia interferes with the brain’s ability to function properly. This can cause dizziness, headache, blurred vision, difficulty concentrating and other neurological symptoms.
What is hypoglycemic encephalopathy?
Hypoglycemic encephalopathy is a metabolic encephalopathy due to extremely low blood glucose. Such patients often suffer from the disease suddenly, which is initially characterized by multiple symptoms such as lags in response, confusion, mental and behavior disorders, and adverse physical activity.
How does hypoglycemia affect the nervous system?
In sensing hypoglycemia, the nutritionally deprived brain also stimulates the sympathetic nervous system, leading to neurogenic symptoms such as sweating, palpitations, tremulousness, anxiety, and hunger. These symptoms prompt individuals to ingest food to increase blood sugar levels.
How does the brain use glucose?
The mammalian brain depends on glucose as its main source of energy. … Glucose metabolism provides the fuel for physiological brain function through the generation of ATP, the foundation for neuronal and non-neuronal cellular maintenance, as well as the generation of neurotransmitters.
Can hyperglycemia cause altered mental status?
Acute hyperglycemia is known to alter mood state and impairs cognitive performance in patients with diabetes mellitus. Patients with diabetes mellitus experiencing ketoacidosis or hypoglycemia have also been shown to experience delirium.
How does insulin affect the brain?
Insulin has two important functions in the brain: controlling food intake and regulating cognitive functions, particularly memory. Notably, defects in insulin signaling in the brain may contribute to neurodegenerative disorders. Insulin resistance may damage the cognitive system and lead to dementia states.
Does low blood sugar cause confusion?
Extremely low blood sugar levels may cause you to be confused, or disoriented. Severely low levels of blood sugar may cause coma. You may have a fast heartbeat, or feel palpitations.
What are neurological complications of diabetes?
Diabetic neuropathy most often damages nerves in your legs and feet. Depending on the affected nerves, diabetic neuropathy symptoms can range from pain and numbness in your legs and feet to problems with your digestive system, urinary tract, blood vessels and heart. Some people have mild symptoms.
How do you increase blood sugar levels in the brain?
Eat lower on the glycemic index (GI)
Pretzels are high on the index, because they cause blood sugar to rise very quickly. Raw carrots, by comparison, have a low glycemic ranking. Carbs in lower glycemic food are broken into glucose molecules more slowly, thereby providing a steadier supply of energy to the brain.
What is a severe hypoglycemia?
Severe hypoglycemia is defined as having low blood glucose levels that requires assistance from another person to treat. Severe hypoglycemia is classed as a diabetic emergency and is a complication that can occur in people with diabetes that take insulin and certain anti-diabetic tablets.
Can hypoglycemia cause seizures?
The brain needs blood glucose to function. Not enough glucose can impair the brain’s ability to function. Severe or long-lasting hypoglycemia may cause seizures and serious brain injury.