Many people who use opioid medications long term do not produce enough testosterone or another important hormone, cortisol, according to a new study.

Some cases of recurrent pregnancy loss may be caused by sperm DNA damage in the male partner, rather than by a problem in affected women.

Transgender men preserve their fertility potential even after one year of treatment with the male hormone testosterone, according to a new study.

Treating women with thyroid antibodies but a normal thyroid function with a medicine called Levothyroxine does not make them more likely to deliver a live baby, new research suggests.

Researchers have shown that the tunable hydrophobic nature of dense siloxane gels is strongly correlated with their catalytic activity, explicitly demonstrating how molecules with different hydrophobi..

Researchers have shown that a newly engineered catalyst made of gold nanoparticles supported on a metal oxide framework shows breakdown of ammonia impurities in air, with excellent selectivity for con..

A phototrophic microbe called Rhodopseudomonas palustris takes up electrons from conductive substances like metal oxides or rust to reduce carbon dioxide.

Simplifying medication regimens and tailoring glycemic targets in older adults with diabetes improves adherence and avoids treatment-related complications.

Using the hemoglobin A1c blood test to diagnose diabetes tends to underestimate the prevalence of the disease, according to a new study.

Among first-time users of a new insulin pump that automatically delivers insulin to people with type 1 diabetes, nearly one-fifth stopped using the device, primarily because of difficulties meeting th..