i have to write a essay on the human reverse life cycle. i know i have to start with a introduction. i need to know how to start the introduction.can you help me to start my human reverse life cycle introduction?

Before you write the introduction, you need to write the body of the paper.

The first paragraph introduces the reader to the topic. This introduction usually ends with a thesis sentence that states your point of view. The body of the essay then supports that thesis sentence.