This video is an introduction to stress and strain, which are fundamental concepts that are used to describe how an object ...

It can result in failure at stress levels well below the material yield or ultimate strengths. In this video I discuss the mechanisms behind fracture, and how S-N curves can be used to predict the ...

“I will say there is a learning curve. I had trouble getting blood ... According to a 2018 study, high stress levels over long periods of time can result in high cortisol levels, which can ...

If you experience chronic stress and exhaustion that's affecting your daily life, it may be a sign that something deeper is going on, such as cortisol imbalance. Both high and low levels of ...