Dr. Steven Ralph Levisohn MD

A dark stool refers to a stool that is either black or dark red in color. You may pass dark bowel movements after consuming dark-colored foods or when an injury or bleeding is present in your gastrointestinal tract. If you pass dark or bloody stools, see your doctor immediately to rule out serious...

Herpes Simplex Virus 1 (HSV-1)HSV-1 or herpes simplex virus type 1 is a type of herpes simplex virus that causes cold sores. It is called "oral herpes" because it often causes sores around the mouth or on the lips. Cold sores are also called as fever blisters. However, the sores can also be found...

Causes of Floating PoopOne day, all of a sudden, you notice that you have floating poop. The very next thing that comes to your mind is,  "Why?"Usually, poop sinks to the bottom of the toilet, so you might be wondering why your poop floats. Diet and other contributing factors can cause changes in...

IntroductionWhen people say salt, they usually mean the common table salt. Salt is a mineral that is mainly composed of sodium chloride (NaCl). To distinguish table salt from a class of chemical compounds called salts, the terms rock salt or the mineral name halite is used. Sodium is also...

What is anemia?Anemia occurs when there are low levels of red blood cells (RBCs) in the body. Red blood cells are the ones that carry oxygen all over the body. So when a person's RBC count is lower than normal, it means that there is not enough oxygen in the blood, causing symptoms of anemia, such...

One of the biggest myths that have been going on for quite a while in the area of weight management is that gaining weight is easier than losing weight.However, in reality, it can actually be extremely tough to gain weight just like losing weight. In most cases, people who want to gain weight end...