Jonathan Powell, MD

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• What Are Lymphocytes? Low, Normal, and High Lymphocyte Counts

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• What Should I Know About Bruises?

  A bruise is a skin injury in which the color of the skin changes due to the breakage of blood vessels under the skin. The affected skin becomes blue or black in color, as blood accumulates just under the surface of the skin, resulting in a raised area or bump. These bumps are painful and may take a...

• Causes, Treatment, and Prevention of Petechiae

  Petechiae are tiny dots that appear as red, brown, or purple in color beneath the skin. They are usually seen in clusters on the stomach, buttocks, arms, and legs. However, they may also appear inside the mouth or on the eyelids. Petechiae may indicate different conditions, which can range from...

• What Are the Treatment Options Available for Bronchitis?

  Bronchitis is a condition that occurs due to the inflammation of the bronchial tubes. There are two types of bronchitis: acute and chronic. Acute bronchitis is usually caused by a viral infection or in some cases, 10 percent by a bacterial infection. Chronic bronchitis, on the other hand, is a...

• What Are Antihypertensive Drugs?

  IntroductionMedications that help treat hypertension are called antihypertensive drugs, which are divided into different categories. These medications work differently with different side effects. Because there are many antihypertensive drugs available, finding the best medication and treatment plan...

• Apples Rank Number One on the Dirty Dozen's List

  Apples are contaminated with pesticides and tops the list of ‘dirty dozen’, while onions are rated as the best among the ‘Clean 15’. The ratings are provided by consumer advocates at the nonprofit Environmental Working Group (EWG), based on the pesticides test conducted by the U.S....