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Dear Dr. Roach: In a recent column, you wrote that migraine of any kind starting in a person鈥檚 60s is uncommon. I am a 66-year-old man in relatively good health. I have controlled blood pressure and cholesterol.

Dear Dr. Roach: Like everyone, I have been using a lot of hand sanitizer and a lot of disinfecting wipes throughout the day.

Dear Dr. Roach: My 90-year-old father has been diagnosed with breast cancer. His doctor is recommending mastectomy, after which time they will determine a course of treatment.

Dear Dr. Roach: I鈥檓 overweight, with some physical mobility and fatigue issues because of autoimmune-related inflammatory arthritis.

Dear Dr. Roach: I lived in England in 1985-1986, during the mad cow disease outbreak. Since then, I have been ineligible to give blood. It is one of the few questions they ask.

Dear Dr. Roach: In your column about statins, you said they have the potential for side effects.

Dear Dr. Roach: I鈥檓 35, and have newly diagnosed Type 2 diabetes. My hemoglobin A1C went down from 7% to 6.6% on metformin, and my doctor just added Januvia.

Dear Dr. Roach: My mother has been on anxiety medication for one year. Her anxiety level continues to increase to the extent that she is unable to rest. She currently takes 30 mg buspirone daily for anxiety. She is also on 20 mg losartan.

Dear Dr. Roach: I found your response to a question about shortness of breath in a recent column very interesting, since I had the problem for a couple of years before the cause was identified.

Dear Dr. Roach: With all the different medications available for high blood pressure, what factors determine the medicine a doctor will prescribe? J.E.P.