Level 1 is marginal risk, which means there is a chance of severe thunderstorms, high winds, hail, and even an isolated ...

But this need not be the case. With proper training and policies, maritime crews can enjoy significantly improved levels of alertness. The Keys to Human Alertness The first step is to understand ...

In between, you have normal levels of alertness, especially if you’re doing something that keeps your attention. Some people can be in the middle of a conversation, walking across a room ...