Does being on your period make you less on top of your game?

'Period brain' may be one of the mainstays of internet banter - but a new study doesn't find any scientific evidence for it

Is there such a thing as period brain? There are teams of researchers asking exactly what having a period does to your memory, ability to pay attention and your judgment. So far, the weight of studies has been firmly tilted towards fluctuating levels of hormones during the menstrual cycle having both physical and mental impacts. The authors of a review in the Archives of Gynaecology and Obstetrics state: "The effects of the menstrual cycle on emotional state and cognitive function have been long recognised," and cite internet humour as confirmatory.