Negative thinking considers the weaknesses of human nature, the disadvantages of change, and how things can go wrong. Positive thinking considers the goodness of people, the advantages of change, and ...

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 ...

Ask a group of experts why it is hard to lose weight, and you'll likely hear some of the following answers: Diets don't work because people can't stick to them. Our metabolism fights back, causing ...

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, ...