Search Results

508 results found
Health topics
… starts in the right atrium in a group of special heart cells called the sinoatrial (or sinus) node. These cells act as a pacemaker for the heart. The heart's … What makes your heart rate speed up or slow down? The cells of the SA node at the top of the heart are known as …
Health topics
… ). Blood and blood vessels. Low levels of white blood cells (leukopenia) and red blood cells ( anemia ) as well as spleen enlargement (an organ involved in making blood and immune cells) may occur. When these problems occur together, it is …
Health topics
… What is breast cancer? Breast cancer occurs when abnormal cells grow out of control in one or both breasts. These cells can invade nearby tissues and form a mass, called a malignant tumour. The cancer cells can spread (metastasize) to the lymph nodes and other …
Health topics
… metastatic or recurrent colorectal cancer. Sometimes cancer cells are too small to be found by tests. These cells may continue to grow and show up later as metastatic … symptoms. What Happens Cancer is the growth of abnormal cells in the body. If the cancer keeps growing, over time it …
Health topics
… is testicular cancer? Testicular cancer occurs when cancer cells grow in the tissues of one or both testicles (testes). … people with testicles. Most testicular cancers start in cells that make sperm. These cells are called germ cells. The two main types of …
Health topics
… For example, a tumour can cause a bowel obstruction. Cancer cells spread to the bone and destroy it. Treatments such as … cancer pain. Cognitive behavioural therapy or short-term crisis counselling may help you manage cancer pain or the … For example, a tumour can cause a bowel obstruction. Cancer cells spread to the bone and destroy it. Treatments such as …
Health topics
… is needed. Shampoo daily to prevent a buildup of dead skin cells on your scalp. If an anti-dandruff shampoo helps stop … as you shampoo. This will help dislodge excess skin cells. Be careful not to rub so hard that you damage your … time to work. Rinse well. This will help get rid of all the cells you have loosened up during shampooing. Related …
Health topics
… colours. It happens when there's a problem with some of the cells found in the layer of nerves (retina) at the back of … present at birth. People usually have three types of cone cells in the eye. Each type senses either red, green, or blue light. You see colour when your cone cells sense different amounts of these three basic colours. …
Health topics
… or dry climates. Animal dander Animal dander is loose skin cells (like dandruff) from animals such as dogs and cats. These skin cells contain saliva or other material from the animals. The cells float in the air. If you are allergic to animal …
Health topics
… hemochromatosis , or who are producing too many red blood cells, such as with polycythemia . Removing blood regularly … in the body by reducing the number of iron-rich red blood cells. Health professionals perform phlebotomy in a medical … Phlebotomy lowers iron levels by removing iron-rich blood cells from the body. How Well It Works Removing excess iron …