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From newspaper article:
We've all been there ahead of a flight, long car journey or even before going to bed: you make yourself go to the loo 'just in case', so that you don't end up crossing your legs later. Even if you don't really need to go... But it turns out those pre-emptive pees might be harmful than you realise. In fact, according to two medical experts, the authors of new book What's Up With Your Bladder, doing so can actually end up having the opposite effect than you intended. More specifically, it can eventually make you need the loo more often, even when your bladder isn't actually that full... Explaining why this is the case, Dr Megan Arroll and Professor Christine Dancey revealed that emptying your bladder unnecessarily can disrupt your body's mechanism. 'There is an elegant mechanism – known as the micturition reflex – that exists between the brain and bladder to let us know when it's time to find a toilet,' they said. 'By emptying the bladder when it's not necessary, we can disrupt this process Adding that stretch receptors send signals to the brain that a trip to the toilet might be a good idea when our bladder is about half full, the experts reveal that we can actually hold on for 'quite some time' after this point. 'Even when the bladder is over half full, we can usually manage for many hours,' the say. With this in mind, they say going to the toilet too often when you don't actually need it can mess things up... 'Problems can start if we go to the toilet many times in the day for fear of being "caught out",' they added. 'Over time, our bodies start to think we must go to the toilet when there is very little pee to empty – meaning you really will need to go a lot more often but there will only be a small amount of urine - or at least feel like you need to go.' But, don't worry if you think you've already messed things up for yourself because the experts say that you can regain healthy weeing behaviours. 'Fortunately, just as going too often can mess up our bodies' understanding of when we need to urinate, we can retrain the bladder and brain back into a healthy pattern,' they added. 'By gradually lengthening the time between trips to the toilet or scheduling when you visit the lavatory, it's possible to once again only go when we need to.'
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