Period clothing is one way of evening out that playing field. They’re cheaper in the long run (a pack of 18 Tampax Compak tampons costs £2.75, compared to a £12 pair of Wuka Basics. You need to wear those pants four times to break even), better for the planet and – crucially – leakproof. Adidas has now released its own period products, designed to make people feel “bullet-proof and protected” on their periods.

So why is it that mainstream fitness brands like Adidas are joining the period party? “There has been this uptick in people talking and thinking about periods,” Dr Bruinvels explains but admits that “so much more is needed.”

“Some elite athletes may be talking about it but we did some research in swimming specifically where we found that 95% of swimmers have never had any education around menstruation. This is so important and if you don’t get it right, it can be so debilitating. Adidas is the first sportswear brand to be proactive about it.”

Ultimately, as Dr Stacy Sims says, women aren’t small men and we shouldn’t have to train as such. Periods play a huge role in our lives and wearing a product that can boost your confidence is a genuinely huge deal. So, if you’re thinking about how to move on your next period, or you’re up for a little experiment, why not try out a pair of period pants or period activewear? You might just find you prefer it that way.

Best period pants for exercise: “I work out wearing period pants every month – here's why you should too”