Immune system diseases (If you have kidney disease due to lupus, your doctor will call it lupus nephritis.) Long-lasting viral illnesses, such as HIV/AIDS, hepatitis B, and hepatitis C. Pyelonephritis, a urinary tract infections within the kidneys, which can result in scarring as the infection heals.
By Dr Ananya Mandal, MD. Nicotine has strong mood altering effects and can act on the brain as both a stimulant and a relaxant. Once within the bloodstream, nicotine may circulate around the body until it reaches the brain.
What Does Nicotine Do to Your Body? Nicotine, the active and addictive ingredient of tobacco, is a mild central nervous system stimulant and a stronger cardiovascular system stimulant. It constricts blood vessels, increasing the blood pressure and stimulating the heart, and raises the blood fat levels.