Other triggers, such as air pollution or pollen are much harder to avoid but medications can help prevent the trigger from setting off an asthma episode. Following are examples of types of triggers and some ways to deal with them. 1  Cigarette Smoke. 2  Allergens. 3  Exercise. 4  Cold air exposure or sudden temperature change. 5  Respiratory Infections and Colds. 6  Excitement / Stress. 7  Odors and Fumes.
Birch Early Origins. Buy PDF History Â». The surname Birch was first found in Lancashire at Birch, a district chapelry, in the parish of Manchester, union of Chorlton, hundred of Salford. The chapel, dedicated to St. James, is supposed to have been originally built by a member of the family of Birch.
Birch species are normally small to medium-size trees or shrubs, mostly of temperate climates and boreal zones of the northern hemisphere. Birch trees prefer to occupy habitats in cool, moist areas, including peatlands (moors, peatbogs), river banks, and lakeshores.ist of Birch Trees, Betula Genus-All known species, taxa types, organized by scientific Latin botanical name first and common names second.