Q.I ve always had strong, healthy teeth, but now I seem to have cavities every time I see the dentist. Why is this happening?

Q.I have hypothyroidism. I like to take natural thyroid medicines rather than synthetic ones like Synthroid. What s the difference between them?

Q. I ve been eating eggs with no problem my whole life. But now, I don t feel well when I eat them. Could I have developed an allergy this late in life?

Q.I m an 81-year-old woman who has always had a beautiful head of hair. Recently, however, I notice that it is falling out and that my scalp is very dry. What can I do?

Q.I am 79 years old and have never been a social person. I don t like to go out to dances and other things my wife likes to do. But recently she s been telling me that I should go out more and that I spend too much time watching television. Is this really so bad for me?

Q.I was recently diagnosed with a cyst on my pancreas. Does that mean I could get cancer?

Q. I received the shingles vaccine three years ago. Will I ever need a booster shot?

Q.For years I thought I had arthritis in my right hand until my doctor diagnosed me with Dupuytren s contracture. What can I do about this condition?

Q: My husband was diagnosed with Alzheimer s disease two years ago. Lately, he s been eating a lot of sweets, which he never did before. Should I let him do this or try to control his diet?

Q: I m a 70-year-old woman in good health. As I ve gotten older, I ve noticed excess hair on my upper lip and chin. My skin is very sensitive, so what s the best way to remove it?

Q: I care for my young grandson a few days a week. But now I have shingles, and I m afraid it may be contagious. Should I stay away from him until my rash clears up?

Q: I don t eat nearly as much as I used to and worry about getting enough vitamins. Should I take a supplement?