A few clear factors are associated with living longer and healthier — such as higher levels of physical activity, good sleep patterns and proper nutrition. However, despite all the advances that have been made to increase the general population's physical activity, improve their sleep patterns, and boost their nutritional habits, there is still a lot to be done. This Research Topic aims to address the topic of healthy ageing and will consider manuscripts focused on the effects of improving these factors in all ages, from childhood to old age. We are mainly interested in questions of broader interventions at the individual (home settings), group (school, work, and gerontology settings), and societal level (community/based settings). We also welcome papers investigating the short- and long-term effects of environmental factors on physical changes in children, working and old age populations and their development. Correlational and survey studies examining the issues mentioned above are welcome.