Meth and the Brain. Meth releases a surge of dopamine, causing an intense rush of pleasure or prolonged sense of euphoria. Over time, meth destroys dopamine receptors, making it impossible to feel pleasure.
CAUSES OF HIGH AMMONIA. Ammonia is a normal by-product of processing nitrogen in the body, and is excreted as waste in the urine, in healthy people. However, elevated blood ammonia levels can occur when the kidneys or liver are not working properly, allowing this waste to remain in the bloodstream, which can be poisonous to your cells.
Since ammonia is not a healthy thing to have in high amounts in your body, it is processed by the body into urea. Urea is then carried in the blood to the kidneys where it is removed and filtered out in the urine. Blood Urea Nitrogen is an indicator of how much ammonia is being transferred into urea.