For example, it controls digestion, respiration, the contractions of the heart and of smooth muscles in blood vessels, and the release, by the endocrine system, of hormones which regulate metabolism and growth. Hormones themselves can influence behaviour by their effects on specific parts of the brain.
Hematuria is also common in older men due to the use of certain medications or prostate enlargement. Blood in urine may occur due to infection, inflammation, or injury to the urinary system. Small amounts of blood are typically associated with kidney damage, while lower urinary tract conditions lead to gross hematuria. Kidney and ureter stones commonly cause hematuria in individuals younger than 40 years of age.
Another common reason for blood in the urine is the presence of stones in the bladder or kidney. These are crystals that form from the minerals in your urine. They can develop inside your kidneys or bladder.