Complex sentence: This method is based on the assumption that all forms of asthma, and numerous other medical conditions, are caused by chronic hyperventilation; however, this theory is not widely supported in the medical community due to the lack of research supporting it.
Split into simpler sentences: This method is based on the assumption that all forms of asthma, and numerous other medical conditions, are caused by chronic hyperventilation. However, this theory is not widely supported in the medical community due to the lack of research supporting it.