Under the Equality Act 2010, sex means a male or female of any age.
The term sex is the most widely accepted and most often used to describe whether someone is female or male. Sex does not include sexual orientation or gender reassignment, which are separately protected.
The terms sex, and gender have historically been used interchangeably but in today’s society their meanings are now becoming more distinct.
In general terms sex refers to biological, anatomical and physiological, differences between males and females.
The term gender is ascribed to the roles that any given society perceive or accept as being masculine or feminine.