"All three can kill people, and all three can cause asthma attacks, " asserts Nolen.
And Aden, a 7-year-old boy from New York, who has asthma attacks from secondhand smoke.
One ad features a Kentucky high school student who suffers asthma attacks from being around cigarette smoke.
She's here to see if something in this tiny one-bedroom apartment is triggering asthma attacks for this family.
Nolen says air pollution can cause asthma attacks, heart attacks, strokes, lung conditions and difficulty breathing for some people.
This has led to a huge rise in allergens and pollen in the air, which can trigger asthma attacks.
In the US, 10 people a day die from asthma attacks, so they are really playing Russian roulette with their patients.
Cynthia Vigil, Celia's mother, says the family gradually limited the girl's physical activity when she was younger because of repeated severe asthma attacks.
IgE can mistake harmless specks of pollen or dust as dangerous invaders and start biochemical chain reactions leading to nasty allergy or asthma attacks.
Allergists are excited about Xolair because it is one of the first drugs to prevent the allergic reactions that can lead to life-threatening asthma attacks.
In trials involving 4, 300 patients, the medicine has been shown to reduce asthma attacks and hospitalisations, and to help improve lung function and quality of life.
That law is credited with preventing 205, 000 premature deaths, 843, 000 asthma attacks and 18 million child respiratory illnesses in 1990, based on the first 20 years of the law.
Asthma attacks can be brought on by exercise, cold and other triggers, says Shawna Strickland, a respiratory therapist and an associate executive director of the American Association for Respiratory Care.
About 60% of the 17 million U.S. asthma sufferers are allergic asthmatics, meaning that their asthma attacks can be triggered by allergic reactions to pollen, dust or other normally harmless substances.
These findings reinforce evidence on the impact of smoke-free legislation from studies in North America and Scotland, which also showed a fall in hospital admissions for children with severe asthma attacks.
Presenting their findings in the journal Pediatrics, they said the number of children admitted to hospital with severe asthma attacks was rising by more than 2% a year before the restrictions were introduced in July 2007.
Research into the effects of the human body clock is continuing in many different areas, which may help scientists understand why heart attacks are more likely to strike in the morning and asthma attacks at night.
Incidences of asthma, heart attacks, and chronic bronchitis are all higher in areas where the concentration of fine particulate matter is higher.
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These vulnerable groups are disproportionately represented in public housing, they point out, and may be at increased risk for sudden infant death syndrome, asthma, respiratory infections, heart attacks, and cancer.
And since it will prevent thousands of heart attacks and cases of childhood asthma, it will also take some strain off our health care system.
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The disease gene findings hint that inflammatory molecules called leukotrienes, previously thought to be involved mainly in asthma, may also be involved in heart attacks.
The DeCode (nasdaq: DCGN - news - people ) results and other recent studies suggest that an old class of asthma drugs called leukotriene blockers might prevent heart attacks by reducing inflammation of the arteries.
Now, in an unexpected twist, a string of laboratory and genetic findings suggest that an old class of asthma drugs called leukotriene inhibitors might also help prevent heart attacks.
Sarah Mullally, Chief Nursing Officer for England, said that currently a specialist asthma nurse treating a child can check their lung function and advise on ways to reduce attacks - but cannot write a prescription for an inhaler.
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