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You have lost most of the glycogen during your physical activity. Body does not want to spend the reserve fat. So you feel hungry. You have lost much water in perspiration and through extra ventilation. So the body fluid becomes hypertonic. That draws water out of thirst centre cells. So you feel thirsty.

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Why do you feel thirsty all the time and am very tired plus keep getting stomach pain?

Feeling thirsty all the time, being very tired, and experiencing stomach pain can be signs of various medical conditions such as diabetes, dehydration, or gastrointestinal issues. It is important to consult a healthcare professional to determine the specific underlying cause and receive appropriate treatment.


Why does drinking cold water feel good?

Drinking cold water feels good because it can help lower your body temperature and provide a refreshing sensation, especially when you are hot or thirsty.


After eating How long does it take to be hungry?

The time it takes to feel hungry again after eating can vary from person to person and depends on factors like metabolism, the type and quantity of food consumed, and individual hunger cues. On average, most people start feeling hungry again within 4-6 hours after a meal.


Does consuming MSG make you feel thirsty?

Consuming MSG, or monosodium glutamate, can lead to increased thirst in some individuals due to its effect on the brain and the stimulation of the taste receptors. MSG is a flavor enhancer that can trigger the umami taste sensation, which may stimulate thirst as part of the overall flavor experience. However, individual responses to MSG can vary, and not everyone will necessarily feel thirsty after consuming it.


Why are you thirsty after a salty meal?

The body struggles to maintain a constant level of salts as well as water for proper functioning. If you eat too much salt, your kidneys have to dispose of the excess. Excreting salts requires that water be sent along with the salts into the urine. Since you are urinating out some of your body's water, your brain tells you to drink more, so you feel thirsty.