Asthma UK has issued advice for sufferers as pollution levels are set to hit "high" and "very high" levels in parts of the country.
The charity urges asthma sufferers to check the air pollution forecast for their area on the Defra website and if levels are high:
- Avoid strenuous exercise outside
- Avoid visiting congested areas, particularly in the afternoon
- Keep on top of asthma symptoms with an asthma action plan
- Have your reliever inhaler with you at all times
If you think that you may be having an asthma attack, take one to two puffs of your reliever inhaler (usually blue), immediately.
Sit down and try to take slow, steady breaths - if you do not feel any better, take another two puffs of the reliever inhaler every two minutes, up to ten puffs.
Researcher found that the risk of developing asthmatic symptoms was the same for both pre-school and school-age children.
Study leader Dr Jasper Been, from the University of Edinburgh's Centre for Population Health Sciences, said:
Doctors and parents need to be aware of the increased risks of asthma in premature babies, in order to make early diagnosis and intervention possible.
By changing the way we monitor and treat children born preterm, we hope to decrease the future risks of serious breathing problems, including asthma.
Our findings should help find better ways to prevent and treat asthma and asthma-like symptoms in those born pre-term.
The researchers studied data on around 1.5 million children pooled from 30 studies from six continents. Four of the research papers were from the UK.
Scientists say that with increasing numbers of babies surviving premature birth, childhood asthma is set to become a significant health problem.
The research showed that average asthma rates rose to 14% in babies born prematurely, defined as at least three weeks early.
Those born more than three weeks before the usual 40-week pregnancy term were almost 50% more likely than full-term babies to develop asthma. And babies born more than two months early were three times more at risk.
New research has shown that being born prematurely can triple a baby's risk of developing childhood asthma, new research has shown.
A study suggests the link between pre-term birth and asthma, or wheezing conditions, is higher than was previously thought.
Asthma is already the most common chronic disease in childhood, affecting around 8% of offspring born after a normal-length pregnancy.
Scientists have found a renegade gene which could be the direct cause of severe asthma in young children.
The gene, CDHR3, is especially active in epithelial cells lining the inner surfaces of the airways.
Researchers studied and compared the complete genetic codes, or genomes, of 3,695 Danish children and adults with asthma, including a number of children under the age of six.
Lead researcher Dr Hakon Hakonarson, from the Children's Hospital of Philadelphia (Chop) in the US, said: "Because asthma is a complex disease, with multiple interacting causes, we concentrated on a specific phenotype - severe, recurrent asthma occurring between ages two and six.
"Identifying a risk-susceptibility gene linked to this phenotype may lead to more effective, targeted treatments for this type of childhood asthma."
Asthma sufferers have been urged to be more vigilant after a poll found that half of those with the condition do not think they are at risk from a fatal attack.
Asthma UK said that out of 50,000 sufferers they spoke to, 52 per cent do not think they are at risk, but nine out of ten are mistaken.
"Millions of people with asthma are unaware that the condition can be fatal and that they are regularly taking huge risks with their lives," said Asthma UK's chief executive Neil Churchill.
With mortality 50% higher than the EU average, and hospital admissions significantly more common than elsewhere in the developed world, most people working in respiratory disease today will recognise that there is considerable scope for improving asthma care in this country.
We hope that, by outlining priority areas for quality improvement, this new quality standard document will mark a significant step towards the kind of world-class care everyone working in the industry wants for the four and a half million people living with asthma across England.
We're delighted that a quality standard is now in place for asthma. This will really help to improve the quality of care provided for one of the most common long-term conditions - so its no exaggeration to say that if this is successful, it could change millions of lives.
We're particularly pleased to see the inclusion of personal asthma action plans. People who have an action plan are four times less likely to need to be admitted to hospital, but only a tiny proportion of people with asthma are currently offered one. Making sure this is implemented will be the next key test of asthma care in the NHS.
Asthma is a long-term, inflammatory disorder which affecting the airways. Allergic asthma is the most common type and is triggered by antibodies produced in response to environmental allergens such as pollen, dust mites, or moulds.
There are currently more than 5.4 million people in the UK being treated for asthma and about 1.1 million of them are children. There were 1,131 deaths from asthma in the UK in 2009 (12 were children aged 14 years or under), which is, on average, 3 people per day.
The health watchdog wants to change the way people with asthma are cared for and improve the quality of care patients receive. Among the 11 points set out by NICE are:
- People with asthma receive a structured review at least annually
- People aged 5 years or older with a severe or life-threatening acute asthma are given oral or intravenous steroids within 1 hour of seeing a doctor
- People with severe, or 'difficult' asthma are offered an assessment by a multidisciplinary difficult asthma service
The new guidelines apply only in England.