Articles on Asthma

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Pollen season: new map of South Africa’s allergy hotspots gives you time to prepare

South Africa’s first five-year pollen calendars reveal when allergy seasons hit seven cities, and how sufferers can prepare before symptoms start.
A view from a bridge overlooking the Harrowgate neighborhood of North Philadelphia. Robert Nickelsberg/Getty Images

Philadelphia’s failing air quality hits hardest in neighborhoods near industry and highways, where asthma rates soar

Greater Philadelphia earned failing air quality grades. A new study finds higher asthma rates near industry and major roads, especially where green space is scarce.
The same polluted air that may have contributed to a baby’s preterm birth is also a risk when the vulnerable baby goes home. Nenov/Moment Collection via Getty Images

I’m a Philly neonatologist, and every time I discharge a baby from the NICU, I worry about the air they’ll breathe at home

Even small increases in air pollution can increase the risk of serious respiratory illnesses for preterm infants and their risk of having asthma as they get older.
The Salton Sea is shrinking and releasing toxic dust from its lake bed. Jennifer Davis/iStock/Getty Images Plus

Toxic dust from California’s shrinking Salton Sea is harming children’s lung growth – our study tracked the impact in 700 kids

A new study reveals how the lake bed’s toxic dust impairs lung development in children living nearby.
Most drug treatments on the market today target inflammation, but a new approach may be needed. aquaArts studio/E+ via Getty Images

People abused by intimate partners have worse asthma – but researchers are still untangling the reasons behind this surprising link

Uncontrolled inflammation is usually thought to be the culprit behind asthma. But in asthma patients who have survived intimate partner violence, a possible new pattern is emerging.
The top 5 ‘asthma capitals’ in the U.S. are Detroit, Rochester, Allentown, Philadelphia and Cleveland, according to the Asthma and Allergy Foundation of America’s 2025 report. Terry Vine/DigitalVision Collection via Getty Images

New report ranks Philadelphia and Allentown among toughest cities in America for people with asthma

The ranking of ‘asthma capitals’ in the US is released each September, the peak time of year for asthma attacks and hospitalizations.
Gas pipelines can be dangerous to human health even if people don’t damage them by digging. Jim West/UCG/Universal Images Group via Getty Images

Methane leaks from gas pipelines are a hidden source of widespread air pollution

Methane reacts in the atmosphere to form components of fine particulate air pollution, which can penetrate deep into the lungs and increase risk for heart disease and asthma.
Since the early 2000s, several studies have shown that asthma and allergy rates are significantly lower among people who grew up on a farm than among those who grew up in urban areas. (Shutterstock)

Growing up on a farm can prevent asthma and allergies

Children who grow up on farms are less likely to develop asthma or allergies as adults. The reason? Micro-organisms in the air.

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