Human beings live on this planet to make their lifestyle so pleasant and happy. Lots of people make their lifestyle so modern and luxurious. But money does not only make people’s lives happy, because money is a part of their lives. Other than money, health is very important. Living a healthy life is most important, because several people are spending their money and wealth to make their life healthy and happy. Several people have lost their lives due to so many diseases. Every day millions and millions of people lose their lives due to so many diseases.

Types of Diseases

Diseases are mainly four types, They are

  • Infectious Diseases, 
  • Deficiency Diseases, 
  • Hereditary Diseases (Including Both Genetic And Non-Genetic Hereditary Diseases) 
  • Physiological Diseases.

Top most killer disease in this world

On this planet, not all diseases are mentioned as killer diseases, because few diseases just come into the human body and are eliminated within a few days or months. But very few diseases have totally killed human life. In this article, we will see the top most killer disease in this world. 

Heart disease

According to the Centers for Disease Control and Prevention (CDC), cardiovascular diseases(CVD) or heart related disease are the leading cause of death across all ethnic groups and genders around the world. In the United States of America, every 34 seconds one person dies due to cardiovascular diseases. More than 800,000 people suffer heart attacks in the US every year. Heart disease is responsible for 1 in 5 of all deaths in the USA, and it claims more than 700,000 lives each year. 

Types of Heart disease

  • Coronary Artery Disease (CAD)
  • Heart Arrhythmias.
  • Heart Failure.
  • Heart Valve Disease.
  • Pericardial Disease.
  • Cardiomyopathy (Heart Muscle Disease)
  • Congenital Heart Disease.

Heart disease is the most silent killer disease; In the year 2022, it is the number one disease to cause death around the world.


In the early months of 2019, it was estimated that almost 17 million of Americans alive had a history of invasive cancer, with several diagnosed years ago and currently disease-free. However, an estimated 1.9 million new cases of cancer are diagnosed each year in the USA. According to the health report every year more 600,000 of Americans die due to cancer disease; This is equal to more than 1600 people losing their lives due to cancer every day. Cancer disease is the second largest death cause disease.

Types of cancer

  • Breast cancer
  • Leukemia
  • Lymphoma
  • Colorectal cancer
  • Prostate cancer
  • Sarcoma
  • Melanoma
  • Pancreatic cancer
  • Multiple myeloma
  • Kidney cancer
  • Oral cavity cancer
  • Bladder cancer
  • Carcinoma
  • Eyes cancer
  • Head and neck cancer
  • Thyroid cancer
  • Non-Hodgkin lymphoma
  • Uterine cancer
  • Brain tumor
  • Anal cancer
  • Squamous cell carcinoma
  • Transitional cell carcinoma
  • Soft-tissue sarcoma
  • Non-small cell lung cancer
  • Acute lymphoblastic leukaemia
  • Oropharyngeal cancer


Diabetes is a chronic disease that can affect and cause damage to tissues and organs such as kidneys, eyes, heart, and blood vessels. A normal person or sick person with diabetes disease often does not experience any symptoms of diabetes until the disease is at an advanced stage in the body. According to the statistics report published on CDC.GOV, more than 38.4 million Americans have diabetes, This is  more than 11 percent of the total US population. Additionally, more than 96 million adults in the USA have prediabetes. 

Types of Diabetes

There are three main types of diabetes: 

  • Type 1diabetes, 
  • Type 2 Diabetes, 
  • Gestational Diabetes (Diabetes While Pregnant: This is a temporary diabetes).

Chronic Respiratory Diseases

According to the health report, 5% of American adults are living with a chronic disease of the lower respiratory tract, such as asthma, chronic bronchitis, COPD, or emphysema. These conditions are responsible for over 870k visits to health care centers or hospitals each year and more than 152k deaths annually. Asthma and other diseases of the lower respiratory tract are the 6’th leading cause of death in the United States.

  • Asthma
  • Chronic Obstructive Pulmonary Disorder (Copd) 
  • Cystic Fibrosis 
  • Lung Cancer 
  • Sleep Apnea.

Chronic Kidney Disease

According to the health care report 15 percent of the adult population in the USA 37 million people have chronic kidney disease (CKD). Unfortunately more than 90 percent of adults with CKD do not know they have the condition, including 40 percent of adults with severe chronic kidney disease. Around the world more than 10 percent of people will be facing chronic kidney disease, millions of people have lost their lives. 

Types of Chronic kidney disease

  • Polycystic Kidney Disease. 
  • IgA nephropathy. 
  • Cystinosis. 
  • Complement 3 glomerulopathy (C3G) 
  • aHUS (atypical hemolytic uremic syndrome) 
  • Focal segmental glomerulosclerosis (FSGS) 
  • Interstitial nephritis.

The most common kidney disease is 

  • Polycystic Kidney Disease (PKD)
  • Simple Kidney Cysts.
  • Kidney Infection (Pyelonephritis)
  • Kidney Stones

Mental Illnesses

Mental illnesses are a dangerous disease in this world. Yes, every year 8 millions of people lose their lives due to this disease. This is a most silent and fast killer disease. One of the worst things is, several people don’t know about this disease’s symptoms. Lots of people are not able to find the right treatment for this disease. This is the fourth largest killer disease in this world, mainly young people are taking their own life due to this disease. 

Types of Mental illnesses 

  • Anxiety Disorders. 
  • Bipolar Disorder. 
  • Depression. 
  • Dissociative Disorders. 
  • Attention Deficit Hyperactivity Disorder (ADHD)
  • Post-Traumatic Stress Disorder.
  • Schizophrenia.
  • Obsessive-Compulsive Disorder.
  • Stress.

The above mentioned killer diseases are still hunting people’s lives every minute around the world. Taking proper precaution steps will help to keep the body healthy and make the mind happy.  Doing regular body check ups will help to keep the body healthy and also take precautionary steps to protect the body from the attack of various diseases in the future.