The effect of multiple adverse childhood experiences on health: a systematic review and meta-analysis.
Prevalence and risk of violence against children with disabilities: a systematic review and meta-analysis of observational studies
Prevalence and risk of violence against adults with disabilities: a systematic review and meta-analysis of observational studies
Human sperm competition: ejaculate manipulation by females and a function for the female orgasm
The data suggest that, in purely monandrous situations, females reduced the number of sperm retained, perhaps as a strategy to enhance conception during periods of infidelity.
Addressing liver disease in the UK: a blueprint for attaining excellence in health care and reducing premature mortality from lifestyle issues of excess consumption of alcohol, obesity, and viral…
Sexual uses of alcohol and drugs and the associated health risks: A cross sectional study of young people in nine European cities
An epidemic of recreational drug use and binge drinking exposes millions of young Europeans to routine consumption of substances which alter their sexual decisions and increase their chances of unsafe and regretted sex.
Do females promote sperm competition? Data for humans
Human Sperm Competition: Copulation, Masturbation and Infidelity
In conclusion, masturbation and nocturnal orgasms in males and females should be considered in the context of fertility and infertility, not the other way around.
Early pubertal onset and its relationship with sexual risk taking, substance use and anti-social behaviour: a preliminary cross-sectional study
Evidence is provided for changes in age of pubertal onset to be further explored as a potential influence on trends in adolescent risk behaviours and for the relationship between early puberty and both obesity and socio-economic status to be understood.
Human sperm competition: ejaculate adjustment by males and the function of masturbation
M masturbation is a male strategy to increase sperm fitness without increasing sperm numbers in the female tract as a function of risk of sperm competition; female reproductive value; and optimum partitioning of ejaculates between successive in-pair copulations.