Parents, take a note. If you want your kids to score good marks, make sure they had their breakfast, as researchers have found that students who rarely ate breakfast on school days achieved lower grades than those who ate it frequently.

Adding together all of a student's exam results, they found that students who said they rarely ate breakfast achieved nearly two grades lower than those who rarely missed their morning meal. For the study, published in the journal Frontiers in Public Health, researchers from the University of Leeds demonstrated a link between eating breakfast and GCSE performance for secondary school students in the UK.