The "bulletproof coffee" trend is a new fad, and presented as a way to gain energy, stay mentally sharp, avoid morning hunger AND lose weight. However, there is no scientific merit to the claims being made. The... continue reading  about  I heard about “bulletproof coffee” – adding butter or another fat into your morning coffee. Are there really benefits?

Herpes simplex is a very common virus and can break out on any moist surface of the body. A person is contagious when there is an active herpetic lesion, and close contact must be avoided during these times. Th... continue reading  about  When should you tell a potential sex partner about herpes?

The feeling of your heart “flipping around” can be a little scary. However, some irregularities in the heart rhythm is the norm. Extra beats, called premature atrial or ventricular contractions, are... continue reading  about  I just e-mailed my doctor about the feeling that my heart is flipping around in my chest. I feel like I have a heart problem. I had a 24-hour Holter monitor and they said it looks fine. But I think something is wrong. Should I see a cardiologist?

Generally, it is not a good idea to suddenly stop a medication that has been taken for years to manage atrial fibrillation (AF). AF is typically a progressive and chronic condition that, without an intervention... continue reading  about  I've been on medication for atrial fibrillation for a number of years. Would it ever be okay to discontinue the medication to see if my arrhythmia is no longer there?

Your question is at the heart of an important and common issue that cardiologists deal with regularly. When is chest pain a serious problem related to the heart? When is chest pain from something other than the... continue reading  about  I'm having chest pains, but all my tests related to the heart have come up clear. What could be the causing this pain?

Kidney stones form in several ways but typically start as crystals that form in concentrated urine. So one thing everyone can do to help prevent stones is to drink extra liquids (to produce 2.5 liters of urine ... continue reading  about  I was recently diagnosed with a kidney stone, but my doctor thinks it will pass on its own without treatment. What is a kidney stone, and is there anything I can do to prevent getting them again?

A stroke results from lack of blood flow to the brain. This means that a region of cells is not able to work properly and can generate a variety of symptoms, depending on the brain area that has been affected. ... continue reading  about  How do I know if I have had a stroke?

Feeling your heart beat at night can be very scary. It sounds like you are pretty fit and healthy. It would be very rare, indeed, for palpitations at night to turn out to be something dangerous or worrisome. Sy... continue reading  about  I’m a 42-year-old woman. I run three to four times a week. My blood pressure is around 115/74. But I have horrifying heart palpitations at night. I’m exhausted. I did a 24-hour Holter monitor and am waiting for an event monitor. What’s happening?

These packages can be reliable and helpful, but it depends. This type of screening usually involves ultrasound imaging of the heart and blood vessels, and the reliability of the testing depends on the skill of ... continue reading  about  I see screening offers for heart health and stroke risk. They offer stroke, vascular disease and heart rhythm packages, as well as tests for abdominal aortic aneurysm and peripheral arterial disease. Are these reliable?