Alexandra Keller PA

What is an auto-immune disease?Your immune system protects you from foreign invaders such as virus, bacteria, and fungus by destroying them. In auto-immune diseases, the body mistakes self tissues to be foreign and destroys them. In other words, auto-immunity is an abnormal condition in which the...

A gastric bypass surgery is done to achieve weight loss, especially in individuals who are obese and overweight. This type of major abdominal surgery alters the stomach and intestines to limit a person's food intake.Annually, there are more than 200,000 Americans who undergo gastric bypass surgery....

Although it’s rare, about 2000 US men are diagnosed each year with breast cancer. Male breast cancer is also on the rise, especially for men previously treated for lymphoma. Breast cancer is very difficult to diagnose in men, especially in the earlier stages. But, there are awareness efforts...

Vitamin D is a nutrient that is present in very few foods. Fortunately, this vitamin is produced by the body with exposure to sunlight. So even when the amount of vitamin D gathered from diet is less than needed, the body can synthesize enough with exposure to UV rays from the sun.  But why is it...

What is an aneurysm?An aneurysm is the abnormal ballooning, widening, or bulging of a part of the artery usually caused by arterial wall weakness. When an aneurysm enlarges and ruptures, disastrous consequences, such as internal bleeding, usually happen.Aneurysms are usually found in the aorta (the...

Shingles is a contagious viral infection that is caused by the varicella zoster virus, the same virus that causes chickenpox. This virus affects a particular nerve section, causing painful rashes on the skin connected to that particular nerve. The rash normally appears in a form of a band on any...