Dr. Lisa H Johnston M.D.

What is sarcoidosis?Sarcoidosis is an inflammatory disease, which is characterized by the growth of granulomas or tiny collections of inflammatory cells in various parts of the body. When the immune system is slowed down and when these numerous clumps form, they tend to interfere with the organ’s...

Introduction Can you imagine having a small bruise but feel like someone has hit you with a sledgehammer? If you can imagine the scenario or may have even felt it at some point in your life, then you must know what it's like to have hyperalgesia.Hyperalgesia is a medical term, which means that the...

Everyone dreams of travelling the world at some point in life, and while this dream may envision backpacks, campfires, mobile speakers, inflatable mattresses and tons of supplies, very few people would dream of actually being backpacks on their thrilling adventure.Some four years ago, one of such...

IntroductionThe Munchausen syndrome is regarded as a factitious disorder. It is a type of mental disorder, wherein people pretend to have certain physical or psychological symptoms in them. People who are between the ages 20-40 years old are more prone to developing the disorder. Men who have few...

IntroductionA person is often regarded as when in the longitudinal course of mood disturbances, the threshold of a disorder is not met. People with bipolar disorder may spend most of their time in the state of mania, depression, or in a mixed state, while the rest are in euthymia. Certain...

George H.W. Bush, who served as the 43rd president of the United States, notably revealed that he has Vascular Parkinsonism in an interview by Parade Magazine. The severity of his condition wasn't as recognized until Super Bowl 51, when he went onto the field in a wheelchair. But, George H.W. Bush...