Asthma is an upper respiratory disease characterized by attacks of wheezing and breathlessness. Over -339 million- people worldwide have asthma. Many asthma attacks have -an underlying trigger-, such as pollen, dust, pet dander, exercise, or some sort of lung irritant. But one surprising trigger can be thunderstorms. Yes, really. Check this out. What Is Thunderstorm Asthma? - Thunderstorm asthma is...