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.
The nicotine in cigarette smoke is addictive. When used in small amounts, nicotine creates a pleasurable feeling, which makes you want to smoke more. The more you smoke, the more you crave. One of the major problems is when you want to quit, you suffer withdrawal symptoms. You may experience headaches, nervousness, irritability and difficulty sleeping. Nicotine can also affect your mood, because it alters the chemistry of your brain and central nervous system.