Does changing post title effect SEO?

[fayeseom]

If you change the title of the site but do not change the main keyword and its position it will not affect much. Follow the advice of seo experts :
_ Research keywords and make the title one of the most standard, do not make much change
_ If need to change, consider and research the keyword again for accuracy
_ Changing the title frequently, google will have to update and change your keyword rankings again, you will face more disadvantages
_ If your previous keyword attracts many customers and now it's gone, you should change the title and optimize the article for the SEO standard