We know much more about the disease, and offer many more effective treatments.
Exercise is a good example.
Children with asthma were once excused from physical education at school because activity might cause wheezing. With proper management, children with asthma can now participate fully in sports and games. Many Olympic athletes have asthma, but it hasn't interfered with their performance. In fact, studies have found that young people in good physical shape have less difficulty controlling their asthma. With good medical management, most people with asthma can attend school or work regularly, sleep through the night and play during the day.