Here’s something I’m sure we can all relate to from the Guardian’s health policy editor, Denis Campbell.

Brexit has left two in five Britons feeling powerless, angry or worried, with large numbers of both Leavers and Remainers affected by such feelings, according to new polling.

In addition, 21% said they have felt anxious as a result of Brexit over the last year, 17% have experienced “high levels of stress” and 12% have had trouble sleeping.

The findings emerged from a poll of 1,823 adults which pollsters YouGov carried out online for the Mental Health Foundation thinktank between 12 and 13 March. It was weighted to reflect opinion UK-wide.

In all 43% said Brexit had left them feeling powerless, 39% said angry and 38% said worried. That equates to about 20m adults feeling each of those emotions. However, while 59% of Remainers have felt powerless, fewer Leavers – 34% – have done so.

“It’s clear from our poll that the political environment, as a result of Brexit, is having an effect on millions of people’s wellbeing”, said Mark Rowland, the foundation’s chief executive.

Three in ten Londoners have suffered Brexit-induced anxiety over the last year – more than in any other region, and much higher than the national average of 21%.

A fifth (19%) of the population have had a disagreement with a family member or partner due to Brexit.