Asthma is one of the most common conditions in the U.S., affecting close to 19 million people. With such a presence, many wonder what causes the condition and if there are ways to prevent or curb its symptoms. According to a new study conducted by scientists from the Los Angeles Biomedical Research Institute at Harbor-UCLA Medical Center and published in the American Journal of Physiology, asthma could be tied to individuals' maternal grandmother.
Researchers discovered that "maternal nicotine exposure" during pregnancy may be a cause of asthma in the third generation of a family. This leap, known as transgenerational linkage, is unique because it shows how a child who was never personally exposed to nicotine or smoking can still develop asthma as a result of his or her grandmother's habit.
"Even though there are multiple causes for childhood asthma, research linking this serious chronic condition to maternal nicotine exposure during pregnancy for up to three generations should give mothers-to-be even more reasons to reconsider smoking," said Dr. Virender K. Rehan, lead author of the study.
While it may be hard to change history after a child is born, parents can help ease the asthma symptoms their children are experiencing by investing in an air purifier such as the IQAir HealthPro Plus.