What is the origin of the idiom "alive and well/kicking" and when to use it?

The idiom "alive and well/kicking" likely originated from the basic concept of being alive and in good health. It is commonly used to indicate that someone is still living and in a healthy state, specifically in the context of physical well-being. It is often used in situations where someone's health or condition may have been a concern or subject of discussion, and it is used to convey that the person is healthy and not facing any significant health issues. It can be used in various contexts, such as in personal conversations, health-related discussions, or medical reports.