Initial stages (1-3 days):
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Depletion of glycogen stores: The body first uses up readily available glucose from food and stored glycogen (mainly in the liver and muscles) for energy.
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Increased hunger and fatigue: As your body enters "starvation mode," you will experience intense hunger pangs and feel increasingly tired
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Ketosis: Your body starts breaking down fat for fuel, producing ketones as a byproduct, which can lead to bad breath and nausea.
Later stages (4-7 days):
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Muscle breakdown: To compensate for the lack of glucose, your body starts breaking down muscle tissue for energy, leading to muscle loss and weakness.
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Electrolyte imbalance: Depletion of electrolytes like sodium, potassium, and magnesium can cause heart rhythm problems, confusion, and seizures.
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Organ dysfunction: The heart, liver, and kidneys become stressed as they attempt to function without adequate energy and nutrients
Beyond a week (8+ days):
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Weakened immune system: Lack of essential nutrients significantly weakens the immune system, making you highly susceptible to infections.
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Severe mental confusion: As the brain lacks its primary fuel source (glucose), cognitive function deteriorates, leading to confusion, disorientation, and even hallucinations.
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Organ failure and potential death: If left untreated, continued starvation can lead to multi-organ failure and eventually death, although the exact timeframe can vary depending on individual factors.
It's crucial to remember that this is a general overview, and the specific effects can vary depending on individual health, body composition, and underlying medical conditions. It's never advisable to deliberately abstain from food for such an extended period. If you are experiencing any difficulty eating or are considering fasting for any reason, always consult a healthcare professional for guidance and support.