Dr. Dennis Chang M.D.

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• The Main Causes of Lower Back Pain

  Brief AnatomyThe back is composed of layers of muscles that hold the spinal column in place. It is involved in moving, twisting, and bending, which is why the back is prone to muscle strain.The spinal column is made up of vertebrae that are divided into five regions. The spinal column provides...

• Medical Conditions That Are Associated with Lethargy

  What are The Symptoms of Lethargy?Lethargy symptoms include:• Sluggishness• Being moody• Decreased level of alertness• Low energy levels• Fatigue and lack of motivation• Depression• Weight loss• Sweating and diarrheaMedical conditions such as premenstrual syndrome and medicinal side...

• Facts About Meningitis Vaccines

  IntroductionThe only way to prevent serious and life-threatening diseases such as meningitis is through vaccination. Meningitis can also be caused by viral, bacterial, and fungal infections. The infection usually affects the meninges or membranes that enclose the brain and spinal cord. Although...

• Natural Remedies for Nasal Congestion

  What is a nasal congestion?Cold, flu, and sinus infections are often few of the culprits that lead to sinus and nasal congestion. Most people must have experienced sinus-related pain and pressure in some point of their lives, and often, people tend to recover without taking antibiotics or any other...

• Why Do Some Vaccines Have to Be Injected Twice?

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• Is Bronchitis a Contagious Disease?

  The human respiratory tract starts at the nose and mouth and continues down to the lungs. The air that we breathe in through our nose and mouth passes down the trachea and into the lungs through a series of branched tubes called the bronchi. For a healthy breathing to happen effectively, these tubes...