Handedness refers to a consistent asymmetry in skill or preferential use between the hands
and is related to lateralization within the brain of other functions such as language. Previous …

OBJECTIVE: To review findings on attention-deficit/hyperactivity disorder and attention
problems (AP) in children, adolescents, and adults, as established in the database of the …

Although common sense suggests that environmental influences increasingly account for
individual differences in behavior as experiences accumulate during the course of life, this …

Birth weight variation is influenced by fetal and maternal genetic and non-genetic factors,
and has been reproducibly associated with future cardio-metabolic health outcomes. In …

Birth weight (BW) has been shown to be influenced by both fetal and maternal factors and in
observational studies is reproducibly associated with future risk of adult metabolic diseases …

A literature search was conducted to identify articles examining the association of chorionicity
(eg, whether twins share a single chorion and thus placenta or have separate chorions/…

The Netherlands Twin Register (NTR) began in 1987 with data collection in twins and their
families, including families with newborn twins and triplets. Twenty-five years later, the NTR …

Introduction Identifying circulating metabolites that are associated with cognition and dementia
may improve our understanding of the pathogenesis of dementia and provide crucial …

The genetic background of childhood body mass index (BMI), and the extent to which the
well-known associations of childhood BMI with adult diseases are explained by shared genetic …

Background Genes and the environment contribute to variation in adult body mass index [BMI
(in kg/m 2 )], but factors modifying these variance components are poorly understood. …