All articles tagged with #longitudinal study
A Harvard-led longitudinal study of 3,107 children in Massachusetts (2018–2023) found that the COVID-19 pandemic significantly slowed the development of executive function in kids aged 3–11, with growth rates below typical norms across all income levels, suggesting a systemic ‘cognitive stall’ that may underlie ongoing academic and behavioral challenges and requiring targeted, systemic support to rebuild foundational skills.
A Swedish 47-year longitudinal study followed 427 people from age 16 to 63, showing muscular power peaks around age 19 in women and 27 in men, aerobic capacity peaks in the mid-30s, and a gradual decline of about 1% per year that speeds up with age. Individual aging paths vary greatly, but regular, varied physical activity is the best defense against decline; the study’s limitations include only five data points over 47 years and binary exercise data, yet it’s clear: it’s never too late to start exercising to maintain fitness.
A Swedish population-based longitudinal study (SPAF) tracking participants from adolescence to age 63 finds that muscular endurance and aerobic capacity peak between ages 26–36, with muscle power peaking earlier (men ~27, women ~19). By 63, overall capacity can fall 30–48%. Regular physical activity slows the decline, and increasing activity in adulthood can boost capacity by about 10%, underscoring that while aging cannot be halted, its pace can be slowed. The study highlights youth activity and uses data from 1974 onward, published in the Journal of Cachexia, Sarcopenia and Muscle.
A Penn State study of 292 families found that less attentive fathering at 10 months was associated with poorer heart and metabolic health in children at ages 2 and 7, whereas mothers’ parenting showed no such link.
A 40+ year UK cohort study of 10,930 participants found that higher ADHD traits at age 10 are linked to more physical health conditions and a 14% higher odds of multimorbidity by age 46. Among those likely to have had ADHD in childhood, 42.1% had two or more health conditions at 46, compared with 37.5% of those without ADHD. While smoking, BMI, and psychological factors partly explain the link, an independent health risk remains, underscoring the need for early health screening and interventions addressing health behaviors and social determinants of health.
A 47-year longitudinal study from Karolinska Institutet finds fitness and strength begin declining around age 35 and continue gradually with age, but starting exercise in adulthood can boost physical capacity by 5-10% and slow loss, with follow-up planned to age 68 to explore underlying mechanisms.
A 17-year study by Ben-Gurion University suggests that the risk of ADHD is influenced by early environmental factors and individual sensitivity, especially in children with certain temperaments and parental ADHD symptoms, highlighting the importance of early intervention.
A 47-year Swedish study reveals that physical decline begins around age 35, but regular exercise can still significantly improve fitness levels even later in life, emphasizing the importance of staying active at any age.
A long-term study of the 1946 British Birth Cohort found that maintaining a high-quality diet from childhood through adulthood is associated with better cognitive abilities and a lower risk of dementia in older age, emphasizing the importance of lifelong nutrition for brain health.
A study finds that weaker muscles in middle-aged and older adults are linked to a higher risk of developing dementia, suggesting that maintaining muscle strength could be important for brain health and early risk detection.
A new study challenges the traditional view that self-control leads to happiness, instead finding that higher well-being predicts better self-control over time across different cultures, suggesting that prioritizing emotional health may be more effective for personal growth than relying solely on willpower.
A 30-year study suggests that childhood friendships have a greater impact on adult attachment styles than parental relationships, with early friendships influencing how individuals form secure or insecure bonds in adulthood more significantly than interactions with parents, especially mothers.
This study uses multi-omic profiling over two years to reveal that in healthy adults, immune system changes with age are characterized by stable, transcriptional reprogramming of T cells, a progressive TH2 bias in memory T cells, and altered B cell responses to influenza vaccination, with minimal influence from chronic CMV infection or systemic inflammation prior to advanced age.
A wearable-based aging clock called PpgAge, developed using PPG data from Apple Watch, accurately predicts chronological age, associates with disease and behavior, and detects physiological changes, offering a scalable tool for longevity research and clinical practice.
Children who exhibit masculine-typical play styles at age 3.5 tend to perform better in mental rotation tasks at age 13, suggesting early play behavior may influence later spatial skills, though causality is not established.