Asthma is thought to be caused by a combination of genetic and environmental factors.. Maximum output with some simple thoughts...
For years, people with asthma have been told to avoid exercise because it would induce attacks. Research has shown, however, that getting regular aerobic exercise increases the amount of huffing and puffing an asthmatic can tolerate. Start by warming up with light exercise before a more vigorous workout. Begin with short workouts and gradually increase them.
At least at first, keep a bronchodilator with you. If you feel tightness in your chest and cant work through it, use the device. If you are out in cold or dry air, wear a scarf around your nose and mouth to heat the air before breathing it in. Cool down with light exercise at the end of your workout. If one type of exercise still brings on attacks, try another form of exercise. You may not be able to tolerate running, for example, but you may be able to swim regularly.