Cold and dry air induce exercise induced asthma. Yoga training may improve lung function tests. Bikram Yoga (heat 39 degree Celsius and humidity 60%)training may improve both lung function tests and bronchial hyperreactivity (to exercise and adenosine 5'monophosphate).

15 young adults with exercise induced asthma and 10 healthy young adults will participate in 2 months taining of Bikram Yoga in Tel Aviv. They will perform sessions of 90 minutes training at least 5 times a week. Lung function tests, bronchial challenges (exercise and AMP) and progressive exercise test will be performed before and after the 2 month training at Hadassah University Hospital in Jerusalem in the asthmatic patients. Healthy adults will perform only lung function tsts and progressive exercise before and after training.

Inclusion Criteria:

• controlled asthma
• age 18-30 years

Exclusion Criteria:

• heart,
• hypertension,
• kidney disease,
• chronic lung disease,
• oxygen dependence