Artisanal gold mining in Kakamega and Vihiga counties, Kenya: potential human exposure and health risk.

Artisanal and small-scale gold mining (ASGM) represents 20% of gold supply and 90% of gold mining workforce globally, which operates in highly informal setups. Pollutants from mined ores and chemicals introduced during gold processing pose occupational and inadvertent health risks to the extent that has not been well elucidated in Africa. Trace and major elements were analysed using inductively coupled plasma mass spectrometry in soil, sediment and water samples from 19 ASGM villages in Kakamega and Vihiga counties.

Loving-Kindness Meditation Effects on Well-Being and Altruism: A Mixed-Methods Online RCT.

Background: Evidence suggests that facilitating empathy could improve individuals' well-being. Loving-kindness meditation (LKM) could be a facilitator, and online delivery a cost-effective format.

Methods: We conducted an internet-based randomised controlled trial recruiting 809 adults to test whether an LKM course improves well-being through evoking pleasant emotions, psychological resources, and altruism compared to a light physical exercise course (LE).

A platform for the remote conduct of gene-environment interaction studies.

Background: Gene-environment interaction studies offer the prospect of robust causal inference through both gene identification and instrumental variable approaches. As such they are a major and much needed development. However, conducting these studies using traditional methods, which require direct participant contact, is resource intensive.

The perceptions of older people in Wales about service provision.

Background: The 'Age Well Feel Good' programme is a cohort study of older people in Wales. There is a gap in knowledge on how older people in Wales perceive health and social care services. Research is necessary to help address this gap and to provide an evidence base that informs policy making and service delivery.

Achieving online consent to participation in large-scale gene-environment studies: a tangible destination.

Background: Population based genetics studies are dependent on large numbers of individuals in the pursuit of small effect sizes. Recruiting and consenting a large number of participants is both costly and time consuming. We explored whether an online consent process for large-scale genetics studies is acceptable for prospective participants using an example online genetics study.

Sleep disturbance and daytime sleepiness predict vascular dementia.

Background: Disturbed sleep is common throughout the community and is associated with an increase in daytime sleepiness, both of which, in turn are associated with an increased risk of ischaemic vascular disease. The hypothesis that sleep disturbances are predictive of dementia, and in particular vascular dementia was tested in a large community-based cohort of older men.

Methods: A questionnaire on sleep disturbances was administered to 1986 men aged 55-69 years in the Caerphilly Cohort Study and 10 years later the men were examined clinically for evidence of dementia or cognitive impairment with no dementia (CIND).