Dear Doctors: I went to urgent care with bad stomach cramps, and the doctor there talked about something called “leaky gut.” But when I asked my own doctor about it, he said it’s not really a thing. W... more

Dear Doctors: My older brother is 33 years old and was recently diagnosed with multiple sclerosis. I don’t want to bother him with a lot of questions, but I would like to learn more about it. Can you ... more

Dear Doctors: You’ve written about the harm to the body from using tobacco products, which has been very helpful. I am especially interested in the details regarding chewing tobacco. I have two middle... more

Dear Doctors: I heard on the news about a study that says your gut microbiome determines whether or not it’s easy for you to lose weight. How did they figure that out? Can I change my gut microbiome t... more

Hello, dear readers, and welcome to a bonus letters column. We enjoy hearing from so many of you, and we are doing our best to answer as many of your questions and concerns as we can.... more

Dear Doctors: My wife and I are now six months out from our second shots of the Pfizer vaccine, and we want to get boosters. Can you please explain where things stand in terms of who is eligible, and ... more

Hello again, dear readers, and welcome back to our monthly letters column. You’ve kept our mailboxes overflowing, so we’ll dive right in.... more

Dear Doctors: Is there some reason I crave junk food when I’m really tired? I’m working double shifts, and if I don’t sleep enough, all I want is donuts and pizza. My husband says it’s because they’re... more

Dear Doctors: Can you please talk about the change of life for women? I have two grown daughters, and one of them went through it at a very young age. Why would that be? This part of a woman’s life do... more

Dear Doctors: I’m breastfeeding my 4-month-old son, and I’ve lost some weight. I’m naturally thin, but my sister thinks my baby is not getting the nutrients he needs. The pediatrician says my son is d... more

Dear Doctors: The recommendation against taking a daily baby aspirin seems to pit heart disease prevention against bleeding risk. But it doesn’t include aspirin's potential benefits in colon cancer re... more

Dear Doctors: Can you please explain about HLH? It’s the disease that my daughter passed away from. She was 47 years old when she got sick, and she lived only another four months. I was told that HLH ... more

Dear Doctors: I read that something called valley fever is getting to be more common here in Arizona on account of climate change. I’ve never even heard of it. Can you please explain what it is?... more