When people think of the deadliest diseases in the world, their minds probably jump to the fast-acting, incurable ones that grab headlines from time to time. However, many of these types of diseases don’t rank in the top 10 causes of worldwide deaths.Here are the most dangerous diseases in the world that has led to the death of Millions of people worldwide.

Ischemic heart disease, or coronary artery disease

The deadliest disease in the world is coronary artery disease (CAD).

Also called ischemic heart disease, CAD occurs when the blood vessels that supply blood to the heart become narrowed. Untreated CAD can lead to chest pain, heart failure, and arrhythmias

smoking

family history of CAD

diabetes

having overweight

Talk with a doctor or healthcare professional if you have one or more of these risk factors.

Solution

You can prevent CAD with medications and by taking steps to improve heart health. Some of the ways you can decrease your risk include: Exercising Regularly: reaching or maintaining a moderate weight, eating a balanced diet that’s low in sodium and high in fruits and vegetables, avoiding smoking, if applicable drinking only in moderation

 

 

Stroke

A stroke occurs when an artery in your brain is blocked or leaks. This causes the oxygen-deprived brain cells to begin dying within minutes.

During a stroke, you feel sudden numbness and confusion or have trouble walking and seeing. If left untreated, a stroke can cause long-term disability.

In fact, strokes are the leading cause of long-term disabilities. People who receive treatment within 3 hours of having a stroke are less likely to have disabilities.

Solution

Stroke prevention methods may include controlling high blood pressure with medications. You should also maintain a healthy lifestyle, complete with regular exercise and a balanced diet that’s low in sodium.

If you smoke, consider quitting and drink only in moderation, as these activities increase your risk of stroke.

 

Lower respiratory infections

A lower respiratory infection is an infection in your airways and lungs. It can be due to: influenza, or the flu, pneumonia, bronchitis, tuberculosis (TB).

Though viruses usually cause lower respiratory infections, they can also be caused by bacteria.

Coughing is the main symptom of a lower respiratory infection. It may produce blood sputum. You may also have a fever, sweating, or chills or experience breathlessness, wheezing, and a tight feeling in your chest.

Solution

One of the best preventive measures you can take against lower respiratory infections is to get the flu shot every year. People at high risk of pneumonia can also get a vaccine.

Be sure to wash your hands regularly with soap and water to avoid transmitted bacteria, especially before touching your face or eating.

If you have a respiratory infection, stay at home and rest until you feel better, as rest improves healing.

 

Chronic obstructive pulmonary disease

Chronic obstructive pulmonary disease (COPD) is a long-term, progressive lung disease that makes breathing difficult. Chronic bronchitis and emphysema are types of COPD.

There’s no cure for COPD, but its progression can be slowed with medication.

The best ways to prevent COPD are to stop smoking, if applicable, and avoid secondhand smoke and other lung irritants. If you experience any COPD symptoms, getting treatment as soon as possible improves your outlook.

Solution

The best ways to prevent COPD are to stop smoking, if applicable, and avoid secondhand smoke and other lung irritants. If you experience any COPD symptoms, getting treatment as soon as possible improves your outlook.

 

Trachea, bronchus, and lung cancers

Respiratory cancers include cancers of the trachea, larynx, bronchus, and lungs.

The main causes are smoking, secondhand smoke, and environmental toxins. However, household pollutions, such as fuels and mold, also contribute.

Solution

Aside from avoiding fumes and tobacco products, it isn’t known if there’s anything else that can be done to prevent lung cancers. However, routine lung scans and early detection can result in more effective treatment and an improved outlook.

 

Diabetes mellitus

Diabetes is a group of diseases that affect the production or use of insulin.

In type 1 diabetes, the pancreas is unable to produce insulin. This type of diabetes is believed to be caused by an autoimmune reaction.

In type 2 diabetes, the pancreas doesn’t produce enough insulin, or insulin can’t be used effectively. Type 2 diabetes can be caused by a number of factors, including poor diet and physical inactivity.

Solution

While diabetes isn’t always preventable, you can control the severity of symptoms by exercising regularly and following a well-rounded, nutritious diet. Adding more fiber to your diet can also help with controlling blood sugar levels.

 

 

Alzheimer’s disease and other dementias

Alzheimer’s disease is a progressive disease that destroys memory, interferes with decision making, and interrupts normal cognitive functions. These include thinking, reasoning, and other everyday behaviors.

Alzheimer’s disease is the most common type of dementia and accounts for about 60 to 70%Trusted Source of cases.

The disease starts off Trusted Source by causing mild memory problems, difficulty recalling information, and slips in recollection. Over time, however, the disease progresses, and you may not have memory of large periods of time.

Solution

There’s not currently a way to prevent Alzheimer’s disease, and researchers aren’t sure why some people develop it and others don’t. As they work to understand this, they’re also working to find preventive techniques.

One thing that may be helpful in lowering your risk of the disease is following a healthy diet. In fact, some research suggests Trusted Source that eating plenty of fruits, vegetables, whole grains, heart-healthy fats, and legumes could support brain function and prevent cognitive decline.

 

Dehydration due to diarrheal diseases

Diarrhea is when you pass three or more Trusted Source loose stools in a day. If your diarrhea lasts more than a few days, your body loses too much water and salt. This causes dehydration, which can be fatal in severe cases.

Diarrhea is usually caused by an intestinal virus or bacteria transmitted through contaminated water or food. It’s particularly widespread in areas with poor sanitary conditions.

Solution

The best method of prevention is practicing good hygiene. Handwashing, improved sanitization and water quality, and access to early medical treatment can also help prevent diarrheal diseases.

 

Tuberculosis

TB is a lung condition caused by bacteria called Mycobacterium tuberculosis. It’s a treatable airborne bacterium, although some strains are resistant to conventional treatments.

TB is one of the top causes of death in people who have HIV. Furthermore, people who have HIV are 18 times  more likely to develop active TB.

Solution

The best prevention against TB is to get the bacillus Calmette-Guerin vaccine, which is commonly given to infants and children in areas where TB is common.

If you think you’ve been exposed to TB bacteria, a doctor can prescribe preventive medications (chemoprophylaxis) to lower the likelihood of developing an active infection.

 

 

Cirrhosis

Cirrhosis is the result of chronic or long-term scarring and damage to the liver. The damage may be the result of a kidney disease, or it can be caused by conditions such as hepatitis, alcoholic liver disease, or nonalcoholic fatty liver disease.

A healthy liver filters harmful substances from your blood and sends healthy blood into your body. As substances damage the liver, scar tissue forms. As more scar tissue forms, the liver has to work harder to function properly and may eventually stop working.

Solution

Moderating alcohol intake can help prevent liver damage and cirrhosis.

Likewise, you can prevent Trusted Source nonalcoholic fatty liver disease by enjoying a nutritious diet rich in fruits and vegetables and low in sugar and fat.

Lastly, you can lower the likelihood of contracting viral hepatitis by using barrier methods each time you engage in sexual activity and by avoiding sharing anything that could have traces of blood such as needles, razors, or toothbrushes.