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‌Unlike asthma, COPD is a largely irreversible and progressive lung disease. Pinterest

By Puja Gupta

Chronic obstructive pulmonary disease (COPD) is a chronic inflammatory lung disease that causes persistent obstruction to airflow in the lungs.

Unlike asthma, this is a largely irreversible and progressive lung disease, where patients often do not realise symptoms, until significant lung damage has already occurred. It’s only when one in at least 40 years old, do symptoms begin to show. COPD is the third leading cause of death in the world and early detection may change its course and progress.

Dr Manoj Goel, Director, Pulmonology, Fortis Memorial Research Institute shares the risk factors:

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‌Exposure to tobacco smoke is the most significant risk factor for COPD. Unsplash

Exposure to tobacco smoke is the most significant risk factor for COPD. About 90 percent of people who have COPD are smokers or former smokers. Between 20 to 30 percent of chronic smokers may develop clinically apparent COPD. The risk increases with every packs and more years of smoking. Other risk factors include second hand smoke, exposure to fumes from burning fuel for cooking and heating in poorly ventilated homes, occupational exposure to dusts and chemicals, genetic disorder alpha-1-antitrypsin deficiency and uncontrolled asthma.

What are the symptoms?

COPD makes it harder to breathe. At first, symptoms of COPD can be quite mild and mistake for a cold. Some of the early symptoms which patients may suffer from can include occasional shortness of breath especially after exercise, cough which is mild but recurrent and needing to clear the throat often, especially first thing in the morning which is generally ignored as a simple smoker’s cough. Progressively the symptoms may get worse and harder to ignore. As the lungs become more damaged, you may experience shortness of breath, after even mild exercise such as walking up a flight of stairs, wheezing, frequent colds, chest tightness, chronic cough, flu, lack of energy or other respiratory infections. In later stages of COPD, symptoms may also include fatigue, swelling of the feet and weight loss. Patients suffering from COPD are also likely to experience exacerbations, during which their symptoms in comparison to day-to-day variation becomes worse and persist for several days.

What complications can it cause?

“COPD can cause many complications, including respiratory infections such as colds, the flu and pneumonia which could cause further damage to lung tissue. People with COPD may not be able to care for themselves without assistance. They are at increased risk of heart problems, and lung cancer. They may also be at risk of depression and anxiety. They have more emergency room visits. COPD generally reduces life expectancy,” he answers.

How to live with COPD?

Quit smoking. Avoid biofuel smoke for cooking and other air pollutants at home and at work.

Cooking should be done in well ventilated kitchen.

Pulmonary rehabilitation, which is a personalised treatment program that teaches COPD management strategies to improve quality of life. Programs may include plans that teach people how to breathe better and conserve their energy, as well as provide advice on food and exercise.

‌Some people may need touse a portable oxygen tank if their blood oxygen levels are low. Unsplash

Take medication regularly which are mainly in the form of inhalers.

Avoid lung infections, certain vaccines such as flu and pneumococcal vaccines, are especially important for people with COPD.

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Some people may need touse a portable oxygen tank if their blood oxygen levels are low.

Drink plenty of fluids which make the mucus easier to cough out.

Limit caffeinated beverages.

Go easy on the salt as it causes body to retain water, which can strain breathing.

Maintain a healthy weight. (IANS)

For More Health Related News in Hindi, Click Here.



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Milky Way galaxy as seen from Chitkul Valley

NASA's Chandra X-ray Observatory has for the first time spotted signs of a planet transiting a star outside of the Milky Way galaxy, opening up a new avenue to search for exoplanets at greater distances than ever before.

The possible exoplanet -- or planets outside of our Solar System -- candidate is located in the spiral galaxy Messier 51 (M51), also called the Whirlpool Galaxy because of its distinctive profile, NASA said in a statement.

Astronomers have, so far, found all other known exoplanets and exoplanet candidates in the Milky Way galaxy, almost all of them less than about 3,000 light-years from Earth.

An exoplanet in M51 would be about 28 million light-years away, meaning it would be thousands of times farther away than those in the Milky Way, NASA said.

"We are trying to open up a whole new arena for finding other worlds by searching for planet candidates at X-ray wavelengths, a strategy that makes it possible to discover them in other galaxies," said Rosanne Di Stefano of the Center for Astrophysics at Harvard and Smithsonian (CfA) in Cambridge, Massachusetts, who led the study.

The findings are published in the journal Nature Astronomy.

The exoplanet candidate was spotted in a binary system called M51-ULS-1, located in M51. This binary system contains a black hole or neutron star orbiting a companion star with a mass about 20 times that of the Sun. The X-ray transit they found using Chandra data lasted about three hours, during which the X-ray emission decreased to zero.

Based on this and other information, the team estimates the exoplanet candidate in M51-ULS-1 would be roughly the size of Saturn and orbit the neutron star or black hole at about twice the distance of Saturn from the Sun.

The team looked for X-ray transits in three galaxies beyond the Milky Way galaxy, using both Chandra and the European Space Agency's XMM-Newton. Their search covered 55 systems in M51, 64 systems in Messier 101 (the "Pinwheel" galaxy), and 119 systems in Messier 104 (the "Sombrero" galaxy).

However, more data would be needed to verify the interpretation as an extragalactic exoplanet. One challenge is that the planet candidate's large orbit means it would not cross in front of its binary partner again for about 70 years, thwarting any attempts for a confirming observation for decades, NASA said.

Named in honor of the late Indian-American Nobel laureate, Subrahmanyan Chandrasekhar, the Chandra X-ray Observatory is the world's most powerful X-ray telescope. It has eight times greater resolution and is able to detect sources more than 20-times fainter than any previous X-ray telescope.

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