Although many narcotic drugs and medications have similar effects or characteristics, each substance is unique. Here are some common examples. From codeine to heroin, there are many narcotic ...

While the United States continues to experience a worsening of the drug overdose crisis, addiction among older adults often remains overlooked. There were more than 30,000 unintentional drug overdoses ...

Scientists studying samples from the Bennu asteroid located not too far from Earth continue to find clues as to how life ...

The range of hazardous substances we may come across is huge and includes, for example, fumes from soldering in our engineering workshops, chemicals in paints and adhesives when constructing sets, ...

Pure and Mixed Substances: In the world of chemistry, substances are broadly classified into two fundamental categories: pure and mixed substances. Understanding these distinctions is crucial as they ...

In 1964, the U.S. surgeon general released a report on the health impacts of smoking, and it shaped the public and government's attitudes toward tobacco for years to come. On Thursday, another surgeon ...

All substances have properties. These describe how a substance looks and behaves. There are two types of properties: physical and chemical. Watch this video about how physical and chemical properties ...