Mental health problems: “Increased anxiety and an inability to emotionally regulate can stem from chronically high cortisol or low oestrogen. It’s important that these feelings are differentiated from the normal variation in mood we may notice day to day, which is completely normal.”

How to balance your hormones

“I’d focus less on trying to keep your hormones balanced and more on maintaining a balanced lifestyle, which in turn will ensure that all the critical hormonal feedback loops that are needed for health will work appropriately,” says McGregor.

An example of how our everyday habits can change our hormonal function is shown through the impact of a failure to fuel our workout practices. “If you do not provide enough carbohydrates to the body, especially a body that is physically very active, for a prolonged period of time, this down-regulates the production of the thyroid hormone T3.

Hormonal imbalance: signs to look out for and how you can fix it, according to a health expert