Eating habits of individuals with learning and behavioral difficulties is an important and emerging area of ​​nutrition expertise. An unhealthy diet, combined with limited physical activity, is linked with an increased risk of chronic diseases and a lower quality of life. The study aims to review in a systematic way evidence on: (a) the relationship between diet quality and ADHD; and (b) the effect of three lifestyle factors, physical activity, quality of sleep, and stress on children and adults with ADHD. In December 2020, we searched for relevant articles in PubMed and Scopus. The studies included were those that assessed diet, physical activity, sleep, and stress, of children and adults with ADHD. We identified a total of eighteen studies with an invasive and observational approach that matched our research criteria. Fourteen of these studies were included in the meta-analysis. The pooled analysis showed that a high-diet quality decreases the prevalence of ADHD in children (OR: 0.43, 95% CI: 0.28-0.70), while a poor diet quality is associated with an increased risk of ADHD in both children and adults (OR: 2.24, 95% CI: 1.49-3.65). Also, a poor lifestyle indicates a higher prevalence of ADHD in both children and adults (OR: 1.90, 95% CI: 1.43-2.61). This study is limited to its ability to extract data from some of the included studies while sampling was limited due to the absence of studies in adults with ADHD. The present study suggests that a high-quality diet with increased consumption of fruits, vegetables, and fish, may be protective against ADHD in children. On top of that, a poor-quality diet with higher consumption of sugar, sweetened drinks, and junk food, as well as a lifestyle that is characterized by reduced sleep and physical activity can be associated with increased risk of ADHD, for both children and adults. The current domain needs more experimental data

This study explored the family businesses and their contribution to the economy, analyzed the distinctive features of the governance systems of these types of businesses. The European Commission recognizes a significant role the family businesses in the EU economy and promotes the creation of a favorable environment where family businesses can grow and develop. This study aims to identify key contributors, key areas, current dynamics, and suggests future research directions in the field of the family business using bibliometric analysis and visualization tools. This study is one of a few that combine a bibliometric analysis and literature review on family business research

This study examines the association between diet and other lifestyle factors of students with dyslexia and ADHD and compare it to students without learning disabilities. The study involved 210 students from Greek universities, aged 18-30 years old (ADHD n = 34; Dyslexia n=27, Students without learning disabilities n = 149). Students completed a specifically created questionnaire online, to examine their demographic traits, adherence to the Mediterranean Diet, sleep quality, perceived stress, and life satisfaction. Significant variations were identified in the responses when it came to life satisfaction, with students with ADHD reporting lower levels (p = 0.005). Students in the lower tertile of Mediterranean Diet (OR: 1.52; 95% CI: 1.1-2.0 p = 0.005) were more likely to have learning disabilities than the higher tertile where the odds were 35% lower (OR: 0.65; 95% CI: 0.49-0.87, p = 0.005). The probability that students will have learning disabilities increases with poorer adherence to the Mediterranean Diet. It is necessary to conduct further research on how students with learning disabilities behave when it comes to their nutrition and other health-related activities.