Karen B James MD

Recommended Articles

• What Is Nicotine?

  IntroductionNicotine is an alkaloid stimulant that comes from the nightshade family of plants, particularly from the leaves of tobacco. The type of nicotine found in tobacco plants is called Nicotiana tabacum. Nicotine can also be synthetically produced. Thousands of chemicals are contained in...

• The Human Heart: Function, Chambers, and Location

  IntroductionThe human heart is a part of the cardiovascular system that is situated in the middle of the chest between the lungs. Its exact location is slightly positioned to the left and behind the sternum (breastbone). The size of the heart is approximately the size of your fist. Its function...

• How Common is Lupus, and What Does it Look Like?

  SymptomsThe affected person may exhibit one or more of the following symptoms. Symptoms are not always consistent, as they may flare up or disappear at any time. ...

• Lightheadedness

  What is lightheadedness?Lightheadedness or feeling faint may not always be a cause for concern. However, it may also indicate an underlying health problem and can increase the risk of falling and fall-related injuries. If you feel lightheaded, drink water or fluids containing electrolytes and take...

• Atrial Fibrillation vs. ,Ventricular Fibrillation

  Any condition of the heart should be taken seriously, as heart conditions can cause very serious damage to the body, especially if not treated quickly and adequately. While all heart abnormalities should be treated as quickly as possible, it is important to understand the differences between atrial...

• Treat Gum Disease for Healthier Blood Vessels

  Intensive treatment of gum diseases may help blood vessels and gums, reports a study published in, The New England Journal of Medicine. The study was conducted on 120 people who had severe gum disease, or peridontitis. In this condition, the gum line recedes and teeth loosens as the support is...