Dr. Mark J. Pletcher M.D.

Ferrous sulfate is an essential mineral and a type of iron used for the treatment of iron deficiency anemia (IDA). When a person lacks iron, symptoms such as tiredness, shortness of breath, and decreased physical performance may be experienced.  Low levels of iron in the body can be treated by...

A new idea of having an implantable microchip to deliver drugs on medication may replace daily injections and improve patient compliance in treatments. The new programmable device, discovered by researchers at Massachusetts Institute of Technology (MIT), was tested on humans and the results...

IntroductionHormones are a special kind of chemical messengers in the body that are created by the endocrine glands. These chemical messengers control and coordinate complex processes in the body, such as growth, metabolism, fertility, and reproduction. Hormones can also influence the body's immune...

What is heart rate?The heart rate is the number of heartbeats that occur per minute. The normal heart rate depends from person-to-person. As people get older, the heart rate changes and pulse regularity may change, which can signify heart problems or other medical conditions. Your heart rate may...

Doctors or physicians are categorized according to different factors including medical specialties and subspecialties. Most doctors specialize in a specific area of medicine. This article provides a summary of the different types of doctors in the medical field. AllergistsAllergists are also...

What does blood in semen mean?Blood found in urine or stool can be a cause for concern. Similarly, when a man comes across blood in semen, then it can make him anxious. The medical term for blood found in semen is hematospermia or hemospermia. Fortunately, blood in semen does not always indicate a...