Hands up if you talk to yourself? Some of my best conversations are those I’ve had in my head but, the flip side is that my inner voice can also be my own worst enemy.

According to one study, we talk to ourselves at a rate equivalent to speaking 4,000 words per minute (by way of comparison, the American president’s State of the Union address, which usually runs to about 6,000 words, lasts more than an hour). No wonder, then, that listening to it can be exhausting, whether it takes the form of a rambling soliloquy, or a compulsive rehashing of events, a free-associative pinballing from one thought to another or a furious internal dialogue.

But if such noise can be paralysing, it can also be self-sabotaging. What we experience on the inside can blot out almost everything else if we let it. A study published in 2010, for instance, shows that inner experiences consistently dwarf outer ones – something that, as Kross notes, speaks to the fact that once a “ruminative” thought takes hold of us, it can ruin even the best party, the most longed-for new job.

Professor Ethan Kross, has devoted many years investigating our inner monologue and, this research has led to him writing Chatter: The Voice in Our Head and How to Harness It.

Much of Kross’s book is devoted to what he calls the “toolbox” of techniques that can be used to dial down chatter, and while some of these seem to contradict all that we think and feel – “venting”, for instance, can do a person more harm than good, because talking about negative experiences with friends can often work as a repellent, pushing away those you need most – others confirm that when we act on certain instincts, we’re right to do so.

To take one example, if you are the kind of person who slips into the second or third person when you are in a flap (“Helen, you should calm down; this is not the end of the world”), you really are doing yourself some good. What Kross calls “distanced self-talk” is, according to experiments he has run, one of the fastest and most straightforward ways of gaining emotional perspective: a “psychological hack” that is embedded in “the fabric of human language”. Talking to yourself like this – as if you were another person altogether – isn’t only calming. Kross’s work shows that it can help you make a better impression, or improve your performance in, say, a job interview. It may also enable you to reframe what seems like an impossibility as a challenge, one to which, with your own encouragement, you may be able to rise.

Some of his other techniques are already well known: the power of touch (put your arms around someone); the power of nature (put your arms around a tree). Activities that induce “awe” – a walk in nature, say, or time spent in front of a magnificent work of art – are also useful, helping with that sense of perspective. Writing a daily journal can prove efficacious for some (something that felt terrible one day physically becoming old news the next), while neat freaks like me will be thrilled to discover that what he calls “compensatory control” – the creation of exterior order, better known as tidying up – really does have an impact on interior order. Reorganise your sock drawer, and you may find that your voice quietens.

As for the pandemic, though, he is less pessimistic than some about the effects it is likely to have long-term on mental health. “We are already seeing signs that depression and anxiety are spiking,” he says. “Everyday feelings of sadness are elevated for many, and then there are more full-blown episodes. But there is also a lot of resilience, and we often underestimate that. A lot of people are doing quite well. They’re managing this hardship in an adaptive way. I am an optimist. We will return, I think, to a nicer place, though how quickly that will happen, I only wish I could say.”

Which technique should the pandemic-anxious deploy? “Well, one that I personally rely on is temporal distancing,” he says. This requires a person to look ahead: to see themselves determinedly in the future. Studies show that if you ask those going through a difficult experience how they will feel about it in 10 years’ time, rather than tomorrow, their troubles immediately seem more temporary. Does this really help him? “Yes, it does. I ask myself how I am going to feel a year from now, when I’m back in the office, and I’m seeing my colleagues, and travelling again, and taking my kids to soccer – and it gives me hope.”

Time to hop into my mental Tardis and time travel ahead to my little house in France. A beintot.