Some people describe asthma as feeling like they are trying to breathe though a straw. The description fits perfectly, because during an attack, airways in the lungs squeeze shut, making it difficult to draw in air. At the same time, the narrowed airways become inflamed and filled with mucus, stifling the airways even further. Asthma can be serious - even fatal. But if you can take care of yourself, asthma isn't cause for alarm. Here are some ways to prevent future episodes.