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).
Asthma affects 22 million Americans; about 6 million of these are children under age 18. People who have a family history of asthma have an increased risk of developing the disease. Asthma is also more common in people who have allergies or who are exposed to tobacco smoke. However, anyone can develop asthma at any time. Some people may have asthma all of their lives, while others may develop it as adults. What causes asthma?