Homeostasis means keeping a constant internal environment. It is carried out around the whole body. Homeostasis reaches from every cell up to whole organs and systems.
Heart disease is the leading cause of death for both men and women in the US and also the leading cause of death worldwide. More than half of the deaths that occur as a result of heart disease are in men. Heart disease is the leading cause of death in the US with around 611,105 deaths each year. Heart disease is a term used to describe several conditions, many of which are related to plaque buildup in the walls of the arteries. Other types of heart problems include angina, arrhythmias and heart failure.
02/04/2011 12:09 pm ET | Updated May 25, 2011. 110. Cancer is a leading cause of death around the world and its incidence continues to rise. Each year 12.7 million people discover they have cancer and 7.6 million people die from the disease.