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The diseases which are mainly caused due to an unhealthy lifestyle, lack of exercise, unhealthy food, etc. but are not transferred from one person to another are called non-communicable diseases.
There are various causes of non-communicable diseases. They can be divided into two groups:
1. Modifiable risk factors
Almost 80 percent of non-communicable diseases are caused by modifiable risk factors such as: -
2. Non-modifiable risk factors
Cancer is the rapid formation of abnormal cells which grow beyond boundaries and can occupy remaining part of the body.
Signs of cancer
Prevention and control
When arteries fail to supply enough blood to the heart, due to lack of nutrients and oxygen, the heart muscles fails to pump enough blood out of the arteries. This condition is known as heart attack.Similarly, stroke is caused when there is disturbance in the supply of blood to the brain.
Causes of heart attack
Symptoms of heart attack
Symptoms of stroke
In the children between the age of 3 to 15 years, tonsillitis and pharyngitis are common which causes mild fever and swelling in the limbs and joints. This type of fever which is caused due to swelling and pain is called rheumatic fever.It is caused by the bacteria called Beta Hemolytic Streptococcus Group - A.Those children, who are suffering from rheumatic fever, have damaged heart valves and this damage in the heart valves caused from rheumatic fever by streptococcal bacteria is called rheumatic heart disease.
Signs and symptoms of Rheumatic Fever and Rheumatic Heart Disease
It is a chronic disease caused by the failure of the pancreas to produce sufficient insulin, a hormone that is responsible for regulating sugar level in blood.According to World Health Organization (WHO), there are about 180 million diabetic people worldwide.
Symptoms and effects
COPD is a lung disease characterised by chronic obstruction of lung airflow that interferes with normal breathing and is not fully reversible. It cannot be cured but can be controlled.According to WHO, there are about 80 million people suffering from this disease worldwide.
Due to Human Papilloma, there is cancer in genitals especially in the cervix.
Sometimes, the supply of blood to the heart is interrupted due to narrowing of the blood vessels in cardiac muscles. The heart can't function in this complex stage and it is known as heart attack. Similarly, narrowing of blood vessels causes severe problem in brain which is called stroke. The common causes of heart diseases are as follows:
The main causes of cancer are:
We can know that we have cancer by focusing towards the symptoms that cancer shows. The symptoms varies according to cancer but these might be the common symptoms for cancer:
Diabetes is caused due to failure of pancreas to secrete insulin due to which there is a high level of sugar in blood. There is no causative agent for this disease and it does not get transmitted from person to person. The basic causes of diabetes are:
The following are the ways to preventive diabetes: -