Dr. J. Xavier Castillo, MD, MPH

Recommended Articles

• 6 Reasons Why You Are Coughing Up Green Mucus

  IntroductionMucus is a moist film, which helps keep your nose from drying out and protect your lungs from foreign substances, such as bacteria, viruses, dust, and other harmful intruders. It keeps you healthy but you may only notice it whenever you are sick. Mucus becomes thicker when you are sick,...

• Vitamin D Deficiency Signs and Symptoms

  What is vitamin D?Vitamin D is an important element to building strong and healthy bones as well as good overall health. It is also a vital nutrient that makes sure that the brain, lungs, heart, and muscles function well.Vitamin D is a fat-soluble vitamin. The body can make its own vitamin D when...

• What is Stress?

  All of us have faced it at some time or the other, but what is it? Why and how does our body respond to it? Why is it not good for us? How can we control it?Stress is the word that refers to the overload of things that we find it difficult to manage in our life. This is a real challenge for our mind...

• What is Causes Dry Mouth?

  Dry mouth is a very common condition characterized by unusual dryness in the mouth. Along with the inconvenience that it causes, it also affects the taste of food and health of the oral cavity. The mouth becomes unusually dry when the production of saliva is inadequate. This condition is found to be...

• Do I Have a Vitamin D Deficiency?

  If you are a person who does not get adequate exposure to sunshine and also fails to have foods rich in it vitamin D, deficiency is the end result. This is very common in vegetarians, as this vitamin is mostly present in fish and eggs. Many products are now fortified with this vitamin to reduce the...

• 5 Treatments for Excessive Sweating

  What is excessive sweating?Excessive sweating is also known as hyperhidrosis. Abnormal and excessive sweating is not necessarily related to a rise in body temperature or intensive exercises. In this condition, sweating is so excessive that it tends to soak the clothes of an individual. At times,...