You may have seen this during the month as it made the rounds of the media outlets, but it's too good not to share again.

Researchers at the University of Kentucky and University of North Carolina looked at the effect that blood glucose levels had on relationships of non-diabetic people. Over 3 weeks, 107 couples tested their BGLs morning and evening, and every night before bed stuck between 0 and 51 pins in a voodoo doll of their spouse to match how angry they were.

They also competed against each other in a video game where the winner was given the opportunity to blast the loser with a horrible noise the researchers described as "the combined sound of a smoke alarm, dentist's drill and fingernails scratching down a blackboard".

The lower the person's blood sugar, the more pins they stuck in the voodoo doll, and the longer they blasted their partner with awful noise.

The theory the researchers put forward to explain this is that self-control requires energy, which of course needs glucose. This suggests that lower BGLs mean less self-control and more overt anger and aggressive behaviour. It's unclear how relevant this is to T1D and the study has drawn some criticism for focusing on a single measure in what is a complex issue, but it's an interesting way to look at hypos. Have you ever been tempted to use voodoo on your partner when low? Join the conversation at Reality Check.

As an aside, we were somewhat amused the researchers had trouble getting people to prick their finger twice per day for a week...