Dr. Charles G. Briseno M.D.

Recommended Articles

• 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...

• What Is Metabolism?

  IntroductionMetabolism is a complex biochemical process that is needed to maintain life. Availability of nutrients and nutrition are closely associated with metabolism since metabolism is a process that involves the conversion of food into energy, which is used to fuel the body's cells. The basal...

• Black Stool: What Does It Mean?

  What does a black stool indicate?A black or dark red-colored stool is called tarry or bloody stools. However, passing dark-colored stools is not always caused by serious problems. One of the most common causes of black stools is the consumption of iron supplements, particularly in people who have...

• What is P90X System?

  P90X system is an extreme home fitness training program that claims to give you a lean and fab body at the end of a 90 day session. The training is provided through a 12-DVD set video program that features workouts for specific parts of the body. The program asks for six to seven days of regular one...

• What Is a Charley Horse?

  What is a charley horse?A charley horse is a term used when referring to a muscle cramp or spasm. Although muscle cramps can occur in any muscle in the body, they are commonly experienced in the leg. In a muscle spasm, the muscle uncontrollably contracts and does not relax. When the contracting...

• 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,...