Dr. David K Yousefzadeh MD

The structure of the esophagus:The esophagus is a muscular tube of about 25 cm in length. It is lined by the non-keratinized stratified squamous epithelium, which abruptly changes to gastric epithelium at the gastroesophageal junction. The stomach is a very acidic environment that has special types...

A Mediterranean diet reduces the damage to the small blood vessels in the brain, according to a new study. This is the staple diet of people in the Mediterranean region including Italy and Greece. This diet emphasizes the use of fruits, vegetables, fish, whole grains, legumes, monounsaturated fats,...

A toothbrush is not as clean as we think, and harbors more than 100 million bacteria, according to researchers at the University of Manchester in England. This includes E. coli bacteria, which cause diarrhea, and staphylococci bacteria, which cause skin infections. “This condition is the same as...

What is a testicular lump?A testicular lump is an abnormal mass in the testicles. Testicles are present in the scrotum and they are an egg shaped organ. The production of sperm and testosterone is the main function of the testicle. Either in one or in both of the testicles the lump may be there and...

Rosacea is an inflammatory skin condition that commonly affects females of ages 30 to 50 years old. Its exact cause is not known, but experts say there is a definite involvement with genetic factors due to the fact that rosacea is seen to run in families. Several other researchers have found links...

What is an X-ray procedure?An X-ray is a quick diagnostic procedure to see the insides of your body. It is an essential tool used to diagnose many health conditions. It involves passing a very tiny burst of invisible electromagnetic radiation to a part of your body or your whole body and capturing...