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 wood of species that grow to a large size such as Betula alleghaniensis (Yellow Birch) have many uses. The wood is used for Birch wood flooring, Birch cabinetry, Birch wood paneling, and some furniture.hoto by Jordgubbe, Picture use (cc2). The genus Betula, commonly known as Birch is made up of 73 taxa. Birch species are normally small to medium-size trees or shrubs, mostly of temperate climates and boreal zones of the northern hemisphere.