The most shocking thing I noticed when engaging my abs too much was my weakened pelvic floor. “Constant engagement of the core (this might be from sucking in your tummy or always feeling the need to brace hard in exercise) can lead to a shortening or tightening of the muscles,” says personal trainer Beth Davies, who specialises in pelvic health.

“The pelvic floor muscles are three layers of muscles that support the pelvic organs, contribute to the effective elimination of waste and support good sexual function. In a constantly shortened position, it becomes harder for them to relax and lengthen, so they may not be able to respond to the demands placed upon them.” This, she says, can lead to leaking, particularly with higher activities, or an inability to hold on when you need a wee. Sex may also feel uncomfortable or painful if the pelvic floor muscles are unable to relax.

Sucking your tummy in restricts your intestines, which need room to function properly, so you may also find you develop digestive issues such as constipation.

Abs workout: is engaging your core all the time bad for your health?