Dr. Sara C Auld M.D.

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...

Lung Cancer: There are two main types of lung cancer; small cell lung cancer (SCLC)  and non-small cell lung cancer (NSCLC). These two types of lung cancers are based on the way the tumors grow and spread. Lung cancer has the highest rate of death toll out of all cancers in the US. The main causes...

Emphysema is a form of chronic lung disease and one of the main types of chronic obstructive pulmonary disease (COPD). This disease is regarded as "obstructive" because people who are suffering from emphysema exhale air as if there is an obstruction. There are various factors that can cause...

Cystic fibrosis has been one of the more devastating and debilitating diseases to take hold of the population. The condition has forced countless research studies, clinical trials, and innovative treatments to try and mitigate the symptoms and effects of cystic fibrosis. One of the riskier but...

Croup is a very common respiratory infection in children, but it can also occur in adults. It can occur at any point and is quite infectious since the virus is often being dispersed through the air, which causes the infection to spread to others. Although rare, croup can also be caused by bacterial...

Because cystic fibrosis affects nearly the entire body, all too many people with this genetic disorder think about their symptoms and outlook then fall into a pit of despair. Not everyone. And certainly not Mae Johnson, a 14 year old girl from Adelaide, Australia.In fact, this enterprising teenager...