For many years people have believed that by having multiple bank accounts it would be easier to save money on a monthly or weekly basis, most people today do have more than one account. New research has shown that people who have more than one account are less likely to contribute money towards savings on a monthly or weekly basis than those who only have one account.
The suggestion in the article on Phys Org is to consolidate all your accounts into one main account so that you have the notion to put money towards savings. People who do not have any savings and are not contributing to their savings on a regular basis could land up having financial difficulties later.
According to the article it is human nature to want to spend money, not save it. To condition yourself to become a saver you might as well start by consolidating your accounts so that you know exactly where your money is and how much of it you have available, the consolidation also takes away the vagueness that multiple accounts gives which discourages spending.