Viagra is the trade name for the drug sildenafil citrate. It works by relaxing the smooth muscle lining of certain blood vessels, causing them to expand and fill with blood. In males, this typically results in penile erection. The use of Viagra can cause side effects affecting multiple organ systems in the body.

Drinking beer -- or any other alcoholic beverage -- can cause swelling, or edema. Edema occurs when an abnormal amount of fluid collects in the tissues of your feet, hands or other parts of the body. Edema that occurs after a bout of beer drinking but goes away within a day or two may not be a medical concern.

According to the American Heart Association in 2013, an estimated 23 percent of adult men and 18 percent of adult women in the United States are smokers. This has created a multibillion dollar industry that depends on the addiction.

You’re on day two of being cigarette-free. You may have had few symptoms of withdrawal yesterday, but now that the nicotine is exiting your system, you’re starting to experience more intense symptoms.

Over time, earwax buildup can cause pain, temporary hearing loss and even ringing in the ear (also known as tinnitus). In some cases the ear wax can become so thick that it is termed "impacted" and cannot be cleaned out using a cotton swab.

Nicotine is a drug that is considered to have negative side effects on babies similar to illegal drug use during pregnancy, notes Science Daily. Casual smoking, even as few as six cigarettes per day, can cause physical effects on newborn babies.

Everybody has a natural pacemaker that sends signals throughout the heart muscle telling it when to beat and how fast or slow it should be beating in conjunction with what the rest of the body is doing. Sometimes, these signals misfire and the recommended course of action is to install an artificial pacemaker.

Condensed soups are a convenient way to make a hearty meal. With most, you have the option of adding water or milk to cook your soup. Water makes it lighter, which may be better for you if you are trying to lose weight. Add milk if you prefer a creamier, heavier soup.

During pregnancy, your body weathers many changes. Exercise is an effective way to address the changes happening in your body.

Despite the many well-known positive benefits of quitting smoking, potential weight gain may be a concern to those contemplating kicking the habit. Smoking increases your metabolism, and when you stop smoking your metabolism reverts back to normal.

You may think a fit, toned body is a lost cause during pregnancy, but that doesn’t have to be the case. Exercise can help you have a healthier pregnancy, make delivery easier on you and prevent too much weight gain, according to the Nemours Foundation.

Isopropyl alcohol, also called rubbing alcohol, is a specific type of alcoholic solution characterized by high flammability, a strong odor and a fast evaporation rate. It is also a common ingredient in some hair care products, and even has some hair applications in its pure form.