Dr. Kara Callahan MD

Recommended Articles

• What Is Chronic Urticaria?

  IntroductionUrticaria is also known as hives, which are itchy and red welts that can be triggered by certain situations or substances. These welts may vary in sizes. They tend to repeatedly appear and fade away as the skin reaction runs its course. Each of these welts is said to characteristically...

• What is Sinusitis? Get the Facts

  The sinuses are four interconnected hollow spaces within the cranial bones of the face. These airy cavities exist as mirror opposites on either side of the nose and under the forehead. They are lined with mucus-secreting epithelium and thin hair-like growths called cilia. Acute infection,...

• How Is Insomnia Diagnosed?

  Insomnia is the inability to sleep that people of all ages can experience. It may be caused by a wide range of factors including physical discomfort or psychological problems. There is a direct relationship between insomnia and psychosocial factors. Factors such as increased age, conflicts with...

• 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 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 HIIT Workouts?

  What is a HIIT Workout?HIIT workout plans are intensive and punishing, but there are good reasons why they are very popular. HIIT stands for high-intensity interval training. As its name implies, it is an explosive and high-power workout. It is not a specific workout or exercise routine. Rather,...