HealthScratching an itch could help boost your immune defences Mice that were free to scratch their itchy ears saw the number of immune cells go up and levels of infection-causing bacteria decline ¿ìè¶ÌÊÓÆµ
HealthIs recycled plastic in utensils and toys really a big health concern? A numerical error in a scientific paper created alarm around the chemicals in black plastic utensils, but the extent to which they cause harm is up for debate Analysis