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Other things that can bring on asthma attacks include
adrenal disorders, anxiety, changes in temperature, exercise, extremes of dryness
or humidity, fear, laughing, low blood sugar, and stress. A respiratory
infection such as bronchitis may also be involved.
Asthma specialist speculate that rising levels of environmental pollution
lead to higher incidence of asthma. Occupational exposure to certain substances--chemicals
such as urethane and polyurethane, used in the adhesives and plactics industry; rubber
epoxy resins from paint, welders' cloth cleaners; fumes in auto body shops; dry cleaning
chemicals; and others--may also be a major risk factor. A predisposition to asthma may be
hereditary.
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Recommendations:
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