Dr. John Michael Tilley M.D.

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• What Could Uncontrollable Shivering Mean?

  Uncontrollable shivering is characterized by the rapid shifting between muscle relaxation and contraction. It is through these contractions that the body warms itself up when exposed to cold. Shivering is not always accompanied by fever. In some cases, shivering may occur before the onset of...

• How is Lung Cancer Diagnosed?

  Lung Cancer is one of the most common and serious forms of cancers in the world. In fact, it is also one of the leading causes of cancer deaths for both men and women. This form of cancer is known to mainly affect older people, primarily those in their seventies. Smoking has been identified as one...

• 5 Tips for Dealing With Ingrown Hair

  Ingrown hair is a condition where hair has grown back into the skin instead of out through the surface. An ingrown hair, since it irritates the skin, usually appears as a small, red bump, much like a pimple. Sometimes, it can have pus inside the follicle and look like a boil and cause you some pain...

• What Causes Cat Scratch Fever?

  What is cat scratch fever?Cat scratch fever is also known as "cat scratch disease", which is a type of bacterial infection. The disease got its name because humans contract the infection from cats that are infected with the bacterium called Bartonella henselae, which is one of the most common...

• What Are Hormones?

  IntroductionHormones are a special kind of chemical messengers in the body that are created by the endocrine glands. These chemical messengers control and coordinate complex processes in the body, such as growth, metabolism, fertility, and reproduction. Hormones can also influence the body's immune...

• How Long Can Sperm Live?

  Introduction An average man ejaculates 1/2 teaspoon to 1 teaspoon of semen. This small amount of semen contains millions of sperm cells. It only takes one sperm to fertilize an egg, but each sperm has a limited life span, which begins once it leaves a man's body.For a couple trying to have a baby,...