I'm pretty sure its from the stomach.
Give you lack of nutrition and will take a toll on your ability to function through out the day. feeding your brain is like getting rest so you are recharged with out it you get tired sluggish and grumpy easily.
Answer:
The body's homeostatic control mechanisms ensure that a balance between fluid gain and fluid loss is maintained.
Explanation:
The most common risk factor is age. The older a man is, the greater the chance of getting prostate cancer. Some men are at increased risk for prostate cancer. You are at increased risk for getting or dying from prostate cancer if you are African-American or have a family history of prostate cancer.