Carlos David Pena M.D.

The sinuses are four interconnected hollow spaces within the cranial bones of the face. These airy cavities exist as mirror opposites on either side of the nose and under the forehead. They are lined with mucus-secreting epithelium and thin hair-like growths called cilia. Acute infection,...

Having hot flashes does not necessarily mean that you have reached menopause. Many other causes apart from the termination of your menstrual cycle can trigger the occurrence of hot flashes. Therefore, understanding the exact cause of your symptoms can really help you in establishing whether you are...

What is ADHD?Current medical research indicates that more than 7% of young children and 5% of adults are living with attention-deficit hyperactivity disorder (ADHD). This is a neurobehavioral disorder that has no definite cure. Millions of people that have this condition experience difficulty...

A person’s weight is decided by the balance between the amount of calories consumed and the amount of calories spent. So if you take more calories than your body can use, the excess calories will be stored as fat and you will add weight. On the other hand, if you take fewer calories than your body...

The uterus or womb, which nurtures and gestates a growing fetus till it becomes mature enough for delivery, can also become the source of life-threatening complications that require surgical intervention. There are at least three prominent reasons why a hysterectomy (uterus removal) might be...

The liver primarily produces cholesterol. Each day, it makes 1,000 mg of cholesterol. The cells lining the small intestine can also produce cholesterol. If the level of cholesterol in the body is low, it may mean that the body is producing low amounts of cholesterol and is going to shut down. In...