Mental health, understood simply, is a measure of our state of mind, just as physical health is a measure of our physical self. It can fluctuate day to day – or even hour by hour – and is influenced by many things in our lives, personal or professional, says Aimee Gee, head of news at Mind. There’s lots of terminology used to describe mental health, which can cause confusion – some people refer to it as ‘emotional health’ while others might call it ‘wellbeing’.