Semen quality has declined especially among Western men. Experimental and
epidemiological studies have shown potential links between exposure to environmental …

Over the past half a century many countries have witnessed a rapid fall in total fertility rates,
particularly in the world's most advanced economies including the industrial powerhouses of …

Objectives To investigate the association of exposure to per-and polyfluoroalkyl substances
(PFAS) during early pregnancy with markers of the maternal thyroid system. Methods Serum …

Background Tobacco smoking has been reported to cause DNA fragmentation and has
been suggested to cause mutations in spermatozoa. These effects have been ascribed to …

Investigations into the etiology of autism spectrum disorders have been largely confined to
two realms: variations in DNA sequence and somatic developmental exposures. Here we …

Background Growing evidence suggests intergenerational effects of paternal pre‐
conceptional smoking through the germ line, but its specific impact on offspring semen …

STUDY QUESTION Is fetal exposure to lower-chlorinated polychlorinated biphenyls (LC-
PCBs) in indoor air of private homes built with PCB-containing materials associated with …

All the cells in our bodies are derived from the germ cells of our parents, just as our own
germ cells become the bodies of our children. The integrity of the genetic information …

Most people are aware that tobacco causes cancer, heart disease, chronic obstructive
pulmonary disease, and major health problems, leading to high morbidity and mortality; …

Background Smoke‐free tobacco via moist oral snuff (snus) is used daily in more than 20%
of Swedish men. Negative effects of cigarette smoking on sperm parameters are well …