As for what is fear biologically speaking, when a person experiences fear, certain areas in their brain such as the amygdala and the hypothalamus are immediately activated and appear to control the first physical response to fear.
Kidney Stones Overview. Kidney stones are small pebbles of salt and mineral in the urine. The most common symptom is severe pain. Most stones pass on their own, but medical procedures are used to remove some kidney stones.
A kidney stone does not usually cause symptoms when it remains in the kidney. However, when a stone moves from the kidney into the ureter, it can cause a blockage of flow of urine, increasing pressure and swelling within the kidney and leading to the symptoms of kidney stones.Severe, often excruciating, pain is the hallmark symptom of kidney stones.owever, when a stone moves from the kidney into the ureter, it can cause a blockage of flow of urine, increasing pressure and swelling within the kidney and leading to the symptoms of kidney stones. Severe, often excruciating, pain is the hallmark symptom of kidney stones.