According to researchers, lower levels of progesterone was associated with higher incidences of migraines in older teen girls, while in younger teens, the opposite was true.
Researchers at UCLA embark in new studies into the biological origin of gender identity and sexual orientation.
Researchers report girls who experience menstruation before the age of 12 are more likely to enter into sexual relationships, pregnancy and marriage earlier than girls who begin their periods at a more advanced age.
A new study reports high fat and high sugar diets alter gut bacteria and cause changes in cognitive flexibility, or the power to adapt to changes in situations.
Researchers suggest that, regardless of where we are from in the world, humans are hardwired to lean to the right when kissing a romantic partner. The findings could have wider implications for neuroscience and cognitive sciences, the researchers report.
Researchers link disrupted sleep and circadian rhythm as risk factors for alcoholic liver disease.
Vanderbilt researchers report elderly people whose hearts pump less blood have reduced blood flow in the temporal lobe. Previous studies report the temporal lobe is a critical brain area for the development of Alzheimer's disease.