A specific gene has not been identified. However, OSA does tend to run in families. Think about it, we tend to have the same anatomic features throughout generations.

Sleep apnea definitely has a genetic tendency. Two important factors are body build - anatomy of the throat, and obesity. OSA usually gets worse with weight gain, and weight has both genetic behavioral and environmental influences. Some people can be thin and have OSA, but as weight increases, especially size of the neck, the apnea usually becomes more severe. Weight control is the best defense!

Sincerely,

Margaret E. Mike, M. D., FAASM

There can be a genetic component. Your son should be screened if he has symptoms