Top most common disease

1 Alzheimer's disease and other dementias.

Top  most common disease

Dementia may be a general term for loss of memory and other mental abilities severe enough to interfere with lifestyle . it's caused by physical changes within the brain. Alzheimer's is that the commonest sort of dementia, but there are many kinds.
Some of these scales were developed specifically for Alzheimer’s disease and work better for that than for other sorts of dementia. Assessment of the extent of someone’s dementia should appreciate of those scales but should also take a broader view of the person, including their capabilities and wishes .
It is far more important to specialise in trying to measure well with dementia, meeting the requirements of the person at that point , than to focus only on which stage they're in.

2 Chronic obstructive pulmonary disease

Top  most common disease

Chronic obstructive pulmonary disease (COPD) may be a sort of obstructive lung disease characterized by long-term breathing problems and poor airflow. the most symptoms include shortness of breath and cough with sputum production. COPD may be a progressive disease, meaning it typically worsens over time.
Emphysema slowly destroys air sacs in your lungs, which interferes with outward air flow. Bronchitis causes inflammation and narrowing of the bronchial tubes, which allows mucus to create up.
The top explanation for COPD is tobacco smoking. Long-term exposure to chemical irritants also can cause COPD. It’s a disease that sometimes takes an extended time to develop.
Diagnosis usually involves imaging tests, blood tests, and lung function tests.
There’s no cure for COPD, but treatment can help ease symptoms, lower the prospect of complications, and usually improve quality of life. Medications, supplemental oxygen therapy, and surgery are some sorts of treatment.
Untreated, COPD can cause a faster progression of disease, heart problems, and worsening respiratory infections.
It’s estimated that about 30 million people within the us have COPD. As many as half are unaware that they need it.

3 Dehydration due to diarrheal diseases

Top  most common disease

Dehydration occurs when more water and fluids leave the body than enter it. Even low levels of dehydration can cause headaches, lethargy, and constipation.
The physical body is roughly 75 percent water. Without this water, it cannot survive. Water is found inside cells, within blood vessels, and between cells.
A sophisticated water management system keeps our water levels balanced, and our thirst mechanism tells us once we got to increase fluid intake.
Although water is consistently lost throughout the day as we breathe, sweat, urinate, and defecate, we will replenish the water in our body by drinking fluids. The body also can move water around to areas where it's needed most if dehydration begins to occur.
Most occurrences of dehydration are often easily reversed by increasing fluid intake, but severe cases of dehydration require immediate medical attention.

4 Diabetes mellitus

Top  most common disease

Diabetes mellitus may be a disease that forestalls your body from properly using the energy from the food you eat
To better understand diabetes, it helps to understand more about how the body uses food for energy (a process called metabolism).
Your body is formed from many cells. to form energy, the cells need food during a very simple form. once you eat or drink, much of your food is weakened into an easy sugar called glucose. Glucose provides the energy your body needs for daily activities.
The blood vessels and blood are the highways that transport sugar from where it's either taken in (the stomach) or manufactured (in the liver) to the cells where it's used (muscles) or where it's stored (fat). Sugar isn't ready to enter the cells by itself. The pancreas releases insulin into the blood, which is the helper, or the "key," that lets sugar into the cells to be used as energy.
When sugar leaves the bloodstream and enters the cells, the blood glucose level is lowered. Without insulin, or the "key," sugar can't get into the body's cells to be used as energy. This causes sugar to rise. an excessive amount of sugar within the blood is named.

5 Trachea, bronchus, and lung cancers

Top  most common disease

Cancer may be a disease during which cells within the body grow out of control. When cancer starts within the lungs, it's called carcinoma .
Lung cancer begins within the lungs and should spread to lymph nodes or other organs within the body, like the brain. Cancer from other organs also may spread to the lungs. When cancer cells spread from one organ to a different , they're called metastases.
Lung cancers usually are grouped into two main types called small cell and non-small cell. These sorts of carcinoma grow differently and are treated differently. Non-small cell carcinoma is more common than small cell carcinoma . For more information, visit the National Cancer Institute’s
Different people have different symptoms for carcinoma . Some people have symptoms associated with the lungs. Some people whose carcinoma has spread to other parts of the body (metastasized) have symptoms specific thereto a part of the body. Some people just have general symptoms of not feeling well. most of the people with carcinoma don’t have symptoms until the cancer is advanced. carcinoma symptoms may include—
Coughing that gets worse or doesn’t get away .
Chest pain.
Shortness of breath.
Coughing up blood.
Feeling very tired all the time.
Weight loss with no known cause.

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