A group of researchers from the University of Essex in Colchester (UK) compared the physical fitness of today's 10-year-olds and those born 20 years ago. Ten-year-olds, according to the new study, have less physical ability, but are taller and heavier than peers born before 20 years. The reason for this may be the frequent sitting in front of a monitor or phone screen, but also less outdoor physical activity linked to, among other things, parents' fear of their child getting hurt.