Dr. David M. Valenzuela MD

Recommended Articles

• Is Tonsillitis Contagious?

  What is tonsillitis?Tonsils are two glands located at the back of the throat and can be seen through the mouth. These glands help prevent infections from developing in the body. Tonsillitis happens when the tonsils become inflamed or infected by viruses or bacteria. Tonsillitis is a common...

• 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...

• Laryngitis: What Is Croup?

  What is laryngitis?Laryngitis is the swelling of your voice box. It is often caused by an infection, mostly by a virus. The voice box is also known as the larynx. It links the back of your throat to the windpipe. The vocal cord and larynx are part and parcel and are required for speech. Laryngitis...

• Metal Taste in Mouth

  Why does my mouth taste like metal?The perception of a metallic taste in the mouth is a symptom that can be found for several reasons. In some cases, this aftertaste depends on mild and transient conditions, sometimes it may be the warning of some more serious pathologies.Among the possible causes:...

• What's the Difference Between Salt and Sodium?

  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 Nicotine?

  IntroductionNicotine is an alkaloid stimulant that comes from the nightshade family of plants, particularly from the leaves of tobacco. The type of nicotine found in tobacco plants is called Nicotiana tabacum. Nicotine can also be synthetically produced. Thousands of chemicals are contained in...