Ever been up in the mountains, at the beach, or in a thunderstorm and suddenly felt a huge change in your mood? That’s not just a feeling of awe. It might be negative ions. Negative ions are molecules ...

Murphy’s sign is a method that helps healthcare professionals diagnose several causes of upper-right abdominal pain. These might include gallbladder inflammation, kidney infection, or bile duct ...

There are many ways of classifying bacteria. One method is based on the cell membrane. In 1884, a bacteriologist named Christian Gram created a test that could determine if a bacterium had a thick, ...

Positive self-talk is an internal dialogue that makes a person feel good about themselves. A person can use positive self-talk to think optimistically and feel motivated. Identifying negative ...