Ultimate protection against neurological degeneration.
A few daily rituals that can go a long way
Two very helpful behaviors can be particularly beneficial for general health and avoiding latent neurodegenerative diseases.
Regular cardiovascular exercise and resistance training along with a lower carb, low-sugar diet can be a powerful strategy in preventing the onset of neurodegenerative diseases like Alzheimer's. First, let’s discuss the brain and how exercise can help enhance and protect our function.
The human brain is an incredibly demanding organ when it comes to blood and oxygen supply. Here are some key facts:
Blood Supply
Daily Blood Flow:
The brain receives approximately 20% of the body's total blood supply. This translates to about 750 milliliters of blood per minute.
Daily Total:
Over the course of a day, this amounts to around 1,080 liters (or roughly 285 gallons) of blood.
Oxygen Requirement
Oxygen Consumption:
The brain consumes about 20% of the body's oxygen supply. Given that an average adult inhales about 550 liters of oxygen per day, the brain uses around 110 liters of oxygen daily.
These substantial requirements underscore the brain's critical need for a constant and sufficient supply of blood and oxygen to function properly.
Physical exercise has numerous benefits for brain health and can help protect the body from neurological degeneration. Here are some key ways in which exercise contributes to maintaining and improving brain function:
Increased Blood Flow and Oxygenation
Exercise enhances cardiovascular health, which in turn improves blood flow and oxygen delivery to the brain. This ensures that brain cells receive the necessary nutrients and oxygen, promoting overall brain health.
Neurogenesis
Exercise, particularly aerobic exercise, stimulates the production of new neurons in the hippocampus, a region of the brain associated with memory and learning. This process, known as neurogenesis, can help counteract the effects of aging and neurological diseases.
Release of Neurotrophic Factors
Physical activity increases the levels of brain-derived neurotrophic factor (BDNF) and other growth factors. BDNF supports the survival of existing neurons and encourages the growth and differentiation of new neurons and synapses.
Reduction of Inflammation
Regular exercise has anti-inflammatory effects, which can protect the brain from the harmful effects of chronic inflammation. Inflammation is linked to various neurodegenerative diseases, such as Alzheimer's and Parkinson's disease.
Improved Insulin Sensitivity
Exercise helps regulate blood sugar levels and improves insulin sensitivity. This is important because insulin resistance and diabetes are risk factors for cognitive decline and dementia.
Stress Reduction
Physical activity reduces the levels of stress hormones, such as cortisol, which can have a detrimental effect on the brain when present in high levels over long periods. Lower stress levels contribute to better mental health and cognitive function.
Enhanced Sleep Quality
Regular exercise is associated with improved sleep patterns and quality. Good sleep is crucial for brain health, as it allows for the removal of toxins and the consolidation of memories.
Cognitive Benefits
Exercise has been shown to improve various aspects of cognitive function, including attention, processing speed, and executive function. These benefits can help delay the onset of cognitive decline and improve overall brain performance.
Incorporating regular physical exercise into your routine can provide significant protective effects against neurological degeneration. Activities such as walking, running, swimming, and regular strength training can all contribute to better brain health and help reduce the risk of neurodegenerative diseases.
Deep dive into the Mechanisms of Protection:
Synaptic Plasticity
Exercise promotes synaptic plasticity, which is the ability of synapses (the connections between neurons) to strengthen or weaken over time. This plasticity is crucial for learning and memory. Exercise-induced synaptic plasticity is mediated by the release of neurotrophic factors like BDNF, which enhance the growth and differentiation of new synapses.
Enhanced Mitochondrial Function
Mitochondria are the powerhouses of cells, including neurons. Exercise improves mitochondrial function and biogenesis, which means that neurons can produce more energy and handle metabolic stress better. This is vital for maintaining neuronal health and function.
Hormesis
Exercise induces a mild and manageable level of biological stress, which activates adaptive stress response pathways. This concept, known as hormesis, helps cells build resilience against more severe stressors. For neurons, this means better resistance to damage and degeneration.
Specific Benefits and Evidence:
Alzheimer’s Disease
Reduction in Amyloid Plaques
Physical activity has been shown to reduce the accumulation of amyloid-beta plaques in the brain, which are characteristic of Alzheimer's disease.
Improvement in Cognitive Function
Numerous studies have demonstrated that regular physical exercise can improve cognitive function and delay the onset of Alzheimer’s symptoms.
Parkinson’s Disease
Dopamine Regulation
Exercise helps modulate the levels of dopamine, the neurotransmitter that is deficient in Parkinson’s disease. It can also enhance the function of the remaining dopaminergic neurons.
Motor Function Improvement
Regular physical activity, especially exercises that improve balance and coordination, can help manage the motor symptoms of Parkinson’s disease.
Stroke Recovery
Specific Exercise promotes neuroplasticity, aiding the brain's ability to reorganize and form new neural connections after a stroke. This can lead to improved recovery of motor and cognitive functions.
Reduced Risk of Recurrent Stroke
Regular physical activity can help control risk factors such as hypertension and diabetes, reducing the risk of subsequent strokes
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The mechanisms through which such a diet exerts its protective effects are multifaceted. Here’s a detailed look at how reducing carbohydrates and sugars can benefit brain health:
Key Mechanisms
Improved Insulin Sensitivity
Insulin Resistance and Alzheimer's:
Alzheimer's disease has been linked to insulin resistance, often referred to as "type 3 diabetes." Insulin resistance in the brain impairs glucose metabolism and contributes to the formation of amyloid-beta plaques, a hallmark of Alzheimer's.
Stable Blood Sugar Levels:
A low-carb, low-sugar diet helps maintain stable blood sugar levels, reducing the risk of insulin resistance. By improving insulin sensitivity, this diet supports better glucose uptake and metabolism in brain cells.
Reduction in Inflammation
Chronic Inflammation:
High intake of processed carbs and sugars promotes chronic inflammation, which is detrimental to brain health. Inflammation is a key factor in the development and progression of Alzheimer's.
Anti-Inflammatory Effects:
A diet low in processed carbs and sugars reduces systemic inflammation. Foods like berries, avocado, olive oil and fatty fish provide anti-inflammatory compounds that protect brain cells from damage.
Decreased Oxidative Stress
Oxidative Damage:
Excessive sugar intake increases the production of free radicals, leading to oxidative stress, which damages brain cells and accelerates aging.
Antioxidant-Rich Foods:
A low-carb, low-sugar diet often includes more antioxidant-rich foods (e.g., some vegetables, berries, nuts) that neutralize free radicals and reduce oxidative damage. Not all fruits and vegetables are created equal.
Specific Benefits for Alzheimer's Prevention
Enhanced Mitochondrial Function
Energy Production:
Mitochondria are the energy powerhouses of cells, including neurons. A low-carb diet can improve mitochondrial efficiency and biogenesis, ensuring that brain cells have a steady supply of energy.
Ketone Bodies:
In a low-carb diet, the body may produce ketone bodies during periods of low glucose availability. Ketones are an efficient energy source for the brain and can improve cognitive function and resilience against neurodegenerative processes.
Reduction in Amyloid Plaques
Amyloid-Beta Clearance:
Insulin plays a role in the regulation of amyloid-beta levels in the brain. Improved insulin sensitivity helps enhance the clearance of amyloid-beta, reducing plaque formation.
Autophagy:
A low-carb, low-sugar diet can stimulate autophagy, a cellular cleanup process that removes damaged proteins and organelles, including amyloid-beta, from brain cells.
Improved Lipid Profiles
Healthy Fats: Low-carb diets often emphasize healthy fats, such as omega-3 fatty acids, which are crucial for brain health. Omega-3s, found in fatty fish, flaxseeds, and walnuts, reduce inflammation and support neuronal function. High quality animal protein and fat provide much of the macronutrients that we need daily in high concentrations.
Cholesterol and Brain Health:
Healthy cholesterol levels are important for the maintenance of myelin (the protective sheath around neurons) and for the formation of synapses. A low-carb, low-sugar diet can improve lipid profiles, supporting these vital brain functions.
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You had me at "stroke recovery"