Medical research

As the oceans rise, so do your risks of breast cancer

It is encouraging to see greater attention in the media to the issue of climate change and its effects on the life-support systems of the planet. The link between breast cancer and the environment, however, is being overlooked.

Diseases, Conditions, Syndromes

Q&A: Even the young and healthy benefit from the flu vaccine

Dear Mayo Clinic: I am 28 and healthy. I have never gotten a flu shot and have never had the flu. Do I really need a flu vaccination? My employer is recommending it for everyone, but I am hesitant. I have heard some people ...

Diseases, Conditions, Syndromes

Treat vitamin D deficiency to prevent deadly lung attacks

Vitamin D supplements have been found to reduce the risk of potentially fatal lung attacks in some chronic obstructive pulmonary disease (COPD) patients, according to a study led by Queen Mary University of London.

Health

Childhood body composition may influence future lung health

How well people breathe as adults may depend on the amount of fat mass and lean muscle mass they have as children, according to a new study led by scientists from the Barcelona Institute for Global Health (ISGlobal), a center ...

Cardiology

Breastfeeding may help a mom's heart

Studies have long touted the benefits of breastfeeding for infants, including stronger immune systems and lower risk for asthma, obesity and Type 2 diabetes. But babies aren't the only ones benefiting: Nursing also appears ...

Medications

How drugs can minimize the side effects of chemotherapy

Researchers at the University of Zurich have determined the three-dimensional structure of the receptor that causes nausea and vomiting as a result of cancer chemotherapy. The study explains for the first time why some drugs ...

Immunology

Asthma medications: Know your options

Confused about your asthma medications? Here's what you need to know to sort out the main classes and numerous subtypes of asthma drugs.

Immunology

Friends' vaping could pose danger to kids with asthma

(HealthDay)—Add another danger that e-cigarettes pose to teenagers: A new study finds secondhand exposure to vaping may raise the chances of asthma attacks in adolescents with the respiratory condition.

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Asthma (from the Greek άσθμα, ásthma, "panting") is the common chronic inflammatory disease of the airways characterized by variable and recurring symptoms, reversible airflow obstruction, and bronchospasm. Symptoms include wheezing, coughing, chest tightness, and shortness of breath. Asthma is clinically classified according to the frequency of symptoms, forced expiratory volume in 1 second (FEV1), and peak expiratory flow rate. Asthma may also be classified as atopic (extrinsic) or non-atopic (intrinsic).

It is thought to be caused by a combination of genetic and environmental factors. Treatment of acute symptoms is usually with an inhaled short-acting beta-2 agonist (such as salbutamol). Symptoms can be prevented by avoiding triggers, such as allergens and irritants, and by inhaling corticosteroids. Leukotriene antagonists are less effective than corticosteroids and thus less preferred.

Its diagnosis is usually made based on the pattern of symptoms and/or response to therapy over time. The prevalence of asthma has increased significantly since the 1970s. As of 2010, 300 million people were affected worldwide. In 2009 asthma caused 250,000 deaths globally. Despite this, with proper control of asthma with step down therapy, prognosis is generally good.

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