NONE of us want to poke when we’re groaning with tummy ache, but there’s more to the relationship between your gut and your sex life than that.

Here are three other ways that things going on in your tummy influences your desire whether or not you poke, according to Bustle:

1. It’s where serotonin is made

Many people think that serotonin is produced in the brain, because it’s a body chemical related to mood and depression. Too little of it and you’ll really feel blue.

But serotonin is also produced in your tummy and regulates bowel movements and feelings of nausea.

Serotonin also has a role to play in how much sex we have. According to Scientific American: "Generally speaking, high levels of serotonin inhibit sexual behavior. This means that antidepressants which increase serotonin cause problems like longer time to ejaculate in men.”

2. Gut bacteria can cause infections

A urinary tract infection (UTI) can make sex really painful, and this has a very direct link to what’s going on in your tummy. According to Washington University School of Medicine: "Most UTIs are caused by E. coli that live in the gut and spread to the urinary tract."

E.coli also does a lot of positive things for the body, but when it gets to the wrong place, all hell breaks loose.

3. What’s going on in our tummy makes us sexy

All the tiny organisms – or microbes – living in your gut are vital for your health. In fact, microbiologist Susan Erdman, told the New York Times that evidence of health like the glow of skin and hair depends on happy organisms in your tummy. This is the “attraction factor”.

Some scientists also have a theory that attraction between people also depends on whether the microbe population in the two people’s guts match or not. If they do, it’s more likely the two will enjoy a positive attraction.