Question

Generally,mankind( I believe across all cultures) prefers to eat foods that are served hot or sometimes chilled.I have the impression that it should be more natural,beneficial and tastier to eat food as it is i.e. at room temperature, as what other animals do. Our body mechanism also would work optimally, I presume at either room or body temperatures. What is your comment?

Answer 1

Are you assuming no cooking of food in advance?

http://news.harvard.edu/gazette/story/2009/06/invention-of-cooking-drove-evolution-of-the-human-species-new-book-argues/