The average British adult will spend a total of 416 days of their life in the bathroom, according to a new study.
Women will spend 456 days using the facilities – around 29 minutes per day, while men spend 373 days – around 23 minutes per day.
The research from B&Q found seven in 10 Brits found using a bathroom “frustrating”.
One third said the top annoyance is finding the toilet roll hasn’t been replaced, and a fifth can’t stand finding hair left down the plug hole.
One in six admitted hiding in the bathroom to get some “peace and quiet”.
In what is perhaps a related finding, seventeen per cent of people get frustrated with other members of their household hogging the room.
Husbands and boyfriends were to blame for the majority of bathroom frustration, according to 29 per cent of those surveyed.
B&Q spokesman Christopher Webb said: “While it isn’t the biggest room in the house, it’s clear that we still expect our bathrooms to work incredibly hard.”
“30 per cent of us are dissatisfied with how our bathrooms work for us, yet the average Brit hasn’t spruced up their bathroom in five years.”
More than half of those polled believed having a great bathroom is "key" to feeling happy in their home.
Almost a third of Brits said updating their bathroom would have a greater impact on their home happiness than any other home improvement project.