"This helps burst the bubble of those who have been claiming that my appetite for changes to the route around the harbour would mean the Department for Transport withdrawing all the money, " Mayor Ferguson said.
Labour accused the coalition government of "shutting out" the desire of Exeter and Norwich city councils to get unitary status, despite "genuine local appetite" for the changes.
Tell-tale signs of underlying medical problems include significant changes in energy, weight, appetite or sleep, which could be due to an endocrine disorder.
However the study does tally with several others, some of which have found that hormonal changes brought on by a lack of sleep can lead to an increased appetite.