Children who speak their native language at home with their parents while growing up in a different country may have higher IQs, according to a new small-scale UK study.

A parasite which is carried by cats that can also affect humans could alter an individual's behaviour and make them more entrepreneurial, according to new research.

A new UK review finds that those who have depression or anxiety could also show an increased rate of cognitive decline later in life.

New US research suggests that exposing children to a combination of secondhand tobacco and marijuana smoke could increase their risk of otitis media (an infection in the middle ear that causes inflammation and a buildup of fluid behind the eardrum) and increase the number of visits to the emergency department (ED).

People who choose alternative cures for common cancers are up to five times more likely to die compared to those opting for standard treatments, says the lead scientist of a new study.