Conversation: The conversation between human and AI assistant.
[|Human|] My brother hasn t slept well or comfortably for a few weeks. When he lays down to sleep, he wakes up and can t breathe well. He then tried to sleep sitting up, and when he awakens from that position, his breathing is better. He doesn t know how much sleep he actually gets. He also has trpuble breathing off and on during the day. He is 51 years old and he does smoke.
[|AI|]  Thanks for your question on Chat Doctor. I can understand your concern. Your brother is having orthopnea. Orthopnea is breathing difficulty in supine position which is relieved by sitting position. Most common cause for orthopnea is heart failure. He is above 50 years and also a smoker. So he is at risk of heart diseases like congestive heart failure. So better to consult cardiologist and get done ECG, 2d echo and stress test. He may need diuretics and other cardiac supportive Chat Doctor.  He should quit smoking as soon as possible. Hope I have solved your query. I will be happy to help you further. Wishing good health to your brother. Thanks.