Hormone replacement therapy (HRT) has been shown to increase the risk of ischemic stroke (lacunar stroke is a subtype of ischemic stroke). Although the absolute risk of complications such as stroke is relativel... continue reading  about  What are the effects of hormone replacement therapy on a person who has a history of lacunar stroke?

Back pain can generally be divided into two categories: Acute (less than four weeks duration)Chronic (greater than four weeks duration)Acute back pain is very common and is one of the top reasons that patients ... continue reading  about  I've been suffering from lower back pain for two years. I've had an MRI, ultrasounds and x-rays, but they can't find anything wrong. However I still have constant pain. What other tests can be done to find the reason for my pain?

Acute hives are actually fairly common, but finding the cause can be challenging. Hives occur when the immune system is stimulated into releasing histamine from inside the blood stream, resulting in the dilatio... continue reading  about  My wife just developed hives for the first time in her life -- on her face, arms and chest. What is known about hives, and what can she do to eliminate the symptoms?

Insomnia sometimes can result from an overactive thyroid, sleep apnea, or an enlarged prostate, in addition to stress and anxiety. Make sure that you have been checked for an overactive thyroid, enlarged prosta... continue reading  about  Since my 20s I've had insomnia. Now in my 40s, the insomnia has been unremitting. When I do sleep, I often wake up drenched. OTC sleep aids and herbal remedies don't help. I exercise and eat a healthy diet. What else should I consider?

Hair loss (alopecia) is a common problem and will be different from individual to individual. You have not given me much information to work with but I am happy to get you started in the right direction.Nutriti... continue reading  about  I was told by a dermatologist that I was born with ectodermal dysplasia. I've never had a lot of hair but it's getting even thinner as I get older. Is there a diet or supplement that I can take to promote better hair growth, and help me keep what I have?

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?

Hearing loss is often the main culprit with concerns about communication difficulties. Communication is the ability to hear, listen and respond to others appropriately. In order to hear, the auditory system (ou... continue reading  about  It's hard for me to follow a conversation when two or more people talk at once. I'm a 48-year-old woman who has had no hearing problems in the past. Should I be concerned?

Yes, there’s a minimally invasive procedure that uses a catheter -- TAVR -- that may be a better choice for some people who are at moderate to high risk of complications from open heart surgery. TAVR... continue reading  about  I’ve been diagnosed with severe aortic stenosis and my doctor says I will need to get a valve replacement. Can heart valves be replaced without open heart surgery?

Headaches after climax have been described over the years and are felt related to changes in the size of blood vessels after sex. Vertigo is more unusual and might suggest a problem with the inner ear system; a... continue reading  about  For the first time in my life I experience vertigo after climaxing. Why is that?