According to a Northumbria University academic, humans are attracted to plant based substances such as tea, tobacco and drugs because our brains are similar to those of insects.
Professor David Kennedy has written a book showing how human brains are just a more complex version of those of insects.
More top news
Teenage schoolchildren who use e-cigarettes dramatically increase their chances of graduating to tobacco, research has shown.
Places in southern and eastern England dominated the top 10 list for quality of life carried out by Prudential.
Ben Houchen has written to the Government to speed up improvements between Norton and Wynyard around Stockton.