Nurses regularly go through shifts without taking breaks, a survey has found.
Three quarters (75%) said they do not have time to take a break during one or two shifts every week, according to the poll by journal Nursing Standard.
Almost three in five (59%) said they are regularly unable to have a drink of water.
Around 2,000 nurses responded to the survey, with many describing a lack of breaks, excessive workloads, hunger and dehydration as affecting their well-being.
One nurse said she had received treatment for kidney stones because she had not been able to drink enough fluid.
Kim Sunley, from the Royal College of Nursing, commented: "It is sad that not taking breaks seems to now have become 'the norm'."
The topic of hydration is due to be debated at the Royal College of Nursing annual conference in Belfast, which begins on Sunday.