Background Previous studies have suggested associations between testosterone, genetic
factors, and a series of complex diseases, but the associations with the lifespan phenotype …

Background Testosterone levels are linked with diverse characteristics of human health, yet,
whether these associations reflect correlation or causation remains debated. Here, we …

Testosterone concentrations in men are associated with cardiovascular morbidity,
osteoporosis, and mortality and are affected by age, smoking, and obesity. Because of …

Purpose Testosterone (T) plays an important role in men's health and its deficiency is linked
with poorer health. However, the role of nutritional and lifestyle factors in T regulation and …

Low testosterone levels in men have been linked to decreased physical and mental function,
as well as a reduced quality of life. Previous prospective observational studies have …

Background Testosterone plays a key role in women, but the associations of serum
testosterone level with gynecological disorders risk are inconclusive in observational …

Lower testosterone levels in men are observationally associated with worse health, but it is
unclear whether they contribute to well-established social gradients in health. Mendelian …

Men with more advantaged socioeconomic position (SEP) have been observed to have
higher levels of testosterone. It is unclear whether these associations arise because …

ABSTRACT BACKGROUND Testosterone products are increasingly being prescribed to
males for a variety of possible health benefits but the causal relationship between …

Background. The strength of associations between total testosterone (TT) and metabolic
parameters may vary in different nature of population structure; however, no study has ever …