Labyrinthitis is an inflammation of the inner ear. The labyrinth is a structure of fluid-filled sacs and tubes just inside the skull. It contains

Laryngitis occurs when the part of the throat called the larynx becomes inflamed. When this happens, it causes a severe hoarseness that can make

Legionnaires’ disease, or legionellosis, is a lung infection (pneumonia) caused by bacteria of the species Legionella. This organism was first discovered in 1976, when

Leukemia is a type of cancer that results in the body making too many abnormal white blood cells. This uncontrolled production results in an

Lice are tiny parasitic insects that can take up residence in a number of different places on our body. They are not a serious

Listeriosis is a foodborne illness. It most commonly affects newborns, people with weakened immune systems, seniors, and pregnant women. Pregnant women are at particular

The liver, the largest gland in the body, plays a vital role in keeping us alive. Its many functions include storing vitamins and nutrients,

The liver is the largest internal organ in the body. Its main functions are to: metabolize most of the nutrients that are absorbed by

Low back pain is one of the most common reasons for visiting a doctor. Most North Americans will experience low back pain at some

Given that people with high blood pressure (hypertension) are far more likely than others to die prematurely of heart disease and stroke, you might

In Canada, lung cancer is the leading cause of death from cancer for both men and women. The majority of lung cancers start in

Lupus, also called systemic lupus erythematosus (SLE), is a chronic inflammatory condition that can affect any part of the body, including the skin, joints,

Lyme disease is an illness caused by a bacterium called Borrelia burgdorferi, which is transmitted by the bite of an infected tick. The bacterium