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Are You Aware of the Top 3 Most Commonly Identified Diseases?

Updated on September 19, 2015


Many diseases have affected human populations since the beginning of time. Some have been identified while others have puzzled scientists especially when it comes to giving diseases specific names and providing remedies. Here in this article, I will attempt to describe the top 3 commonly identified diseases known to humans: Ischemic Heart Disease, Cerebrovascular Disease and Lower Respiratory Tract Infections. Many scientific article have been written on these diseases. These actually ranged from experiments dealing with modern therapies to discoveries in animal models.

Ischemic Heart Disease

Ischemic heart disease is a disease that occurred as a result of reduced blood supply to the heart. It is regarded as the most common cause of death in most western countries. When the coronary arteries which supply blood to the heart muscle is blocked, it causes a reduction in the supply of blood to the heart muscle and in turn causes damages to the heart. Hardening and narrowing of arteries, often known as Atherosclerosis, is considered to be one of the potential causes of most ischemic heart disease. It is a medical condition that involves thickening of arterial walls as a result of accumulation of fatty streaks and remnants of dead cells including triglycerides and cholesterol. Atherosclerosis may remain without any symptoms and the arterial linings may also appear normal for decades. This can occur because as blood passes through, the force pushing the blood causes blood vessel enlargement to accommodate blood passage even with minimal blockage so at the end there is no issues as blood has passed as intended. Problems arise when blood vessels bust or blood circulation is stopped. The narrowing of coronary arteries is mainly caused by the outer layer of the atheromatous plaques within the walls of the arteries rupturing and resulting in a heart attack. Diets and certain group of medications called "statins" can be used to put control against hardening and narrowing of arteries.

Cerebrovascular Disease

The second disease group is cerebrovascular diseases. It is a group of medical conditions that affect the circulation of blood to the brain resulting in restricted or no blood flow to the affected areas of the brain. Hardening and narrowing of arteries due to high cholesterol levels in addition to inflammation of arteries in the brain can lead to cholesterol accumulation in the form of a plaque. Such plaque have been known to restrict blood flow to the brain thereby resulting in stroke and dementia.

There are various forms of cerebrovascular diseases and they include cerebral thrombosis (blood clot in brain), aneurysms, cerebral embolism followed by bleeding in the brain. Common signs and symptoms of brain hemorrhage include movement disorder such as hemiplegia and hemiparesis.

Lung Disease

Lower Respiratory Tract Infections

Lower respiratory tract infections applies to variety of respiratory tract diseases such as pneumonia, lung abscess and bronchitis. I am certain there are others but these mentioned are often encountered. Common symptoms associated with lower respiratory tract infections include shortness of breath, weakness, high fever, chills, headache, coughing and fatigue. In the early 2000, lower respiratory infections was still considered the leading cause of death among different infections diseases. It can occur as acute as well as chronic condition. Two most common infections of lower respiratory tract are actually bronchitis and pneumonia.

Pneumonia appear to be a serious concern especially when there is sign of coughing up bloody mucus and phlegm. In terms of causes of pneumonia, one need to consider factors such as visited locations, exposure to animals and people who are ill, occupation, age, season of the year and smoking status. Most treatments focuses on the use of antibiotics to control the infections.


The problems caused by these diseases in our society cannot be overemphasized. The world is verse and complicated that sometimes it is difficult to manage some of these diseases. Due to the routes or methods that some of these diseases occur, health care providers almost always encourage people to practice preventative strategies to avoid dealing with these diseases. Prevention is the key to a healthy life.


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