Dr. Mark T. O'brien D.O.

Recommended Articles

• Health Reasons That Can Make a Person Pass Out

  Causes of Fainting A person faints or loses consciousness for a brief time when the brain does not get enough oxygen. Fainting or passing out is also medically called syncope. Before fainting, people may experience lightheadedness, dizziness, weakness, and nausea. Others describe fainting as...

• What Do Head Lice Eggs Look Like?

  Lice lay their eggs called nits, which are placed on the hair shaft. Nits look more like dandruff but they cannot simply be shaken out of the hair like dandruff. To get rid of lice eggs, you have to follow certain steps and make sure that their eggs or nits are completely removed from the...

• What Is the Cause of an Underactive Thyroid Gland?

  Gaining weight? Feeling colder? Feeling depressed? Hypothyroidism could be the reason behind it.What is hypothyroidism?Also known as low thyroid or underactive thyroid, hypothyroidism is characterized by underactive thyroid glands that fail to produce an adequate amount of thyroid hormones. These...

• What Are Hormones?

  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...

• The History of Rheumatoid Arthritis

  Introduction Rheumatoid arthritis causes inflammation of the joints and other body areas. It is an autoimmune disease and its symptoms include:...

• What Is Atherosclerosis: Types, Symptoms, and Home Remedies

  What is atherosclerosis?Atherosclerosis is also known as arteriosclerotic vascular disease or ASVD. It is a particular type of arteriosclerosis in which an artery wall gets thickened as an effect of attack and accumulation of white blood cells and rupture of the intimal smooth muscle cell producing...