Credit Odd Andersen/Agence France-Presse â Getty Images. 1  MOSCOW â President Vladimir V. Putin of Russia and President-elect Donald J. Trump spoke by telephone for the first time on Monday, agreeing to review what both consider the poor state of relations between the two countries, according to a statement from the Kremlin.
Asthma in Children. Asthma in Children. The cause of asthma is unknown. Health experts believe that inherited, environmental, and immune system factors combine to cause inflammation of the bronchial tubes , which carry air to the lungs. This can lead to asthma symptoms and asthma attacks. Family history. Asthma may run in families (inherited).
Causes of symptoms of asthma. Symptoms of asthma are caused by excessive secretions in the bronchi, spasm of smooth muscle in the bronchial wall and inflammatory swelling of the bronchial lining (mucosa). These changes cause obstruction to airflow in and out of the lungs.