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Would I, as a doctor, ever expect to meet a miner? Luckily, I accepted an invitation to do just that, and discovered there is something new under the sun.

Dear Dr. Roach: I am a 66-year-old male who gets shortness of breath when walking up a hill or on a trail. I had a stent put in in 2002, and I had a stress test done. My doctor said it was fine, but he said I just had shortness of breath.

Dear Dr. Roach: I am an active 77-year-old male in relatively good health. In April, I had some silent reflux causing mild asthma.

Recently, in a column I confessed to buying the penny stock of Eastgate Biotech Corp.

Dear Dr. Roach: Years ago, I went to a doctor for sinus problems. He put a drainage hole in my ear. For a while, everything was fine. But now, I hear people talking to me. They say they are hooked up to my head.

Dear Dr. Roach: I have heard of almost every organ or part of the body being attacked by cancer, but I鈥檝e never heard of cancer of the heart. Can that be the case? C.L.

Dear Dr. Roach: In your recent column on sleep aids, I noticed that you said nothing about nondrug preparations. Some people find that chamomile helps, as do other herbs.

Dear Dr. Roach: We have a close family friend who was hospitalized with C. diff several months ago after working at an assisted-living facility.

How many of us would like to live like a hermit? I doubt that many would decide to give up the comfort and pleasures of civilization. But we pay an increasing price for comfort.

Dear Dr. Roach: There was an article in your column on the fact that you don鈥檛 recommend alprazolam as a long-term sleep aid. It has been recommended to me. What are the consequences of long-term use? A.T.