what's not yet clear is whether the changes are permanent or if they can be reversed. it can get scary to hear about the fact that your brain has shrunk. but we need to bear in mind that the brain is really plastic. by that, we mean it can heal itself. the study could also help researchers to better understand long covid. it didn't look at the condition specifically but the hope is the findings could provide new clues. i think it's a good starting point, and that opens up all sorts of questions that other researchers can follow up in long covid clinics and so on about the effect of coronavirus infection on cognitive function, brain fog, and other areas of the brain and to really focus research on how best to mitigate that. this study is just the start. it looked at earlier variants of covid. it's unclear whether omicron

would cause the same changes. the hope is further scans will help us to understand the legacy left by covid—19. rebecca morelle, bbc news. so on the eve of that historic address by president zelensky to the house of commons, let's rejoin reeta in the city of lviv in western ukraine. for months, vladimir putin denied repeatedly that russia would invade its neighbour. even as president putin marshalled tens of thousands of his military forces up near the ukraine borders, the country's leaders sought to reassure people that war was not inevitable. it means that today's awful reality is one that many ukrainians didn't think they would be facing. our special correspondent fergal keane has caught up with three people he met in the last days of peace. we didn't imagine this. explosion.

that these streets of chernihiv, where we'd walked last month, would now be a place of fire. but even as we took a group photograph on the nearby northern border, the russians were close, getting ready. a thought that haunts our ukrainian producer, sofia. i couldn't believe that it's happened in the same place. when i was with you, i didn't believe at all. within a fortnight, sofia was a refugee, fleeing tojoin herfamily on the polish border. her daughter, anna, aged four, exiled but safe. now, from the polish city of krakow, sofia told me of life

outside her country. every day and night, i think of what will be next, so it's very stressful. but still, if i speak with ukrainian people who are still in ukraine, i can't say that i'm stressed because they are more stressed than me. not far from the border, down along the roads now dominated by the russian army... 1989. ..we met valery and galina. he is ukrainian, she is russian. married a0 years, and worried even then about broken relationships with russian friends and family. it's terrible, because we... we lose a lot of friends. we have no food in the supermarket. now i can only reach them online. they are trapped inside a town, surrounded by the russians.

you even cannot imagine, all people got together, and they are waiting for the russians to kill them. how is galina? hi, galina. hi. translation: | feel only. disappointment and anger. and i cannot understand how this can be happening. this isn't possible. in kyiv, at the end of ourjourney then, we witnessed the beginning of another. hello! hello. vasily and olga zelensky with their newborn baby, jaromir. his name means peace. translation: we need to think. about a better life, especially now, when we have such a miracle in our arms. we can't think about bad things any more. but not long after, this came — the invasion that forced them to flee to the countryside ahead of the russian advance.

olga, what is it like for you, all of this now, with the baby and the war? translation: we met your team a week before the war started. _ who would have thought that when our son was two weeks old, we were going to speak here, right now, after seeing these rockets flying over our house? to say that i was shocked is saying nothing. that's why our whole lives turned all over, from head to toe. butjaromir gives them hope. he is a superstar! laughter. maybe he knows that. all of these people once lived in peace. caused no harm to anyone. that's the kind of world they stand for, and which they hope can return for their children. fergal keane, bbc news, lviv. well, things here remain

ominously uncertain. in this part of ukraine, it has been relatively calm. but tonight we learned that the british ambassador, who was based in this city, has now left the country entirely because of the serious security situation — a reminder if it were needed of the possibility of a further escalation. that's all from us tonight here in lviv. now on bbc one, it's time for the news where you are. have a very good night. hello, and welcome to our look ahead to what the papers will be bringing us tomorrow. with me are broadcaster john stapleton, and kate proctor, the editor of politicshome and the house magazine. welcomed you both, nice to have you here. tomorrowfront pages. the i says borisjohnson is under pressure to open the door to more refugees,

amid continued russian shelling on ukraine. according to the telegraph, vladimir putin has set out his demands in order to halt the invasion of ukraine. the times carries a picture of a woman who was partially blinded by a russian shell. the newspaper says these shredded faces chart mr putin's strategy better than any map. the financial times focuses on the market reaction to the crisis, after calls for a ban on russian crude led to volatility in oil and gas prices. and the daily mail reports that the prime minister is drawing up a new energy supply strategy, amid fears household energy bills could hit £a,000. so all about ukraine tonight again, as it won't surprise you to hear, but the papers going in slightly different directions. the ft saying markets rattled by pushed for russian crude ban as a refugee crisis mounts. brent crude, that all important indicator up and down like a yo—yo. it’s important indicator up and down like a o- o. h important indicator up and down like a o- o. �*, ., important indicator up and down like a o- o. �*, . . important indicator up and down like a o- o. �*, ., ., ., a yo-yo. it's $139 a barrel at one staae, a yo-yo. it's $139 a barrel at one stage. it's _

a yo-yo. it's $139 a barrel at one stage, it's been _ a yo-yo. it's $139 a barrel at one stage, it's been about _ a yo-yo. it's $139 a barrel at one stage, it's been about 15 years. i stage, it's been about 15 years. this volatility all started after the us indicated it might be willing to ban imports of russian crude oil, presumably going to somewhere like saudi arabia and venezuela to make up saudi arabia and venezuela to make up the difference, though that wouldn't be without its complications. that caused a great deal of volatility in the markets, as well as a rising gas prices. borisjohnson came to this 90 minute meeting with mr biden and other western leaders saying maybe now it's on the agenda, and of course other alternatives will have to be discussed, as well, like more nuclear power for britain, discussed, as well, like more nuclear powerfor britain, going back to renewables. but clearly a major day for the markets, a greater deal of uncertainty all caused by the uncertainty in ukraine. {iii the uncertainty in ukraine. of course, and on the subheading there, "berlin resists bar to ban imports." showing once again that germany

really is quite sensitive to the decisions of the international community, it's ploughing its own thorough. community, it's ploughing its own thorou:h. , ., ., , , ., community, it's ploughing its own thorou:h. , ., ., ,, ., ., , ., thorough. they do appear to be an outlier on the _ thorough. they do appear to be an outlier on the international- thorough. they do appear to be an outlier on the international stage i outlier on the international stage at the _ outlier on the international stage at the moment because there's so reliant_ at the moment because there's so reliant on— at the moment because there's so reliant on russian gas and energy surlplies — reliant on russian gas and energy supplies. they do appear to be in tune _ supplies. they do appear to be in tune with — supplies. they do appear to be in tune with what europe is saying, the west is_ tune with what europe is saying, the west is saying generally about their approach _ west is saying generally about their approach to russia, but when it comes— approach to russia, but when it comes to — approach to russia, but when it comes to this energy supply issue, it's very— comes to this energy supply issue, it's very difficult for them. we certainty— it's very difficult for them. we certainly aren't hearing from germany— certainly aren't hearing from germany a shift in the way they might— germany a shift in the way they might be — germany a shift in the way they might be able to do things. boris johnson is — might be able to do things. boris johnson is saying perhaps we can took at _ johnson is saying perhaps we can look at other supplies, being more reliant— look at other supplies, being more reliant ourselves, perhaps we will look reliant ourselves, perhaps we will took to _ reliant ourselves, perhaps we will took to the — reliant ourselves, perhaps we will look to the north sea and, asjohn said before, perhaps to renewables. but were _ said before, perhaps to renewables. but were not hearing the same things from germany, they seem to be the buffer— from germany, they seem to be the buffer in— from germany, they seem to be the buffer in these discussions. there are only— buffer in these discussions. there are only so — buffer in these discussions. there are only so many ways you can hit russia _ are only so many ways you can hit russia with — are only so many ways you can hit russia with economic sanctions, they have treen— russia with economic sanctions, they have been really severe, energy sanctions — have been really severe, energy sanctions or banning gas from russia would _ sanctions or banning gas from russia would be _ sanctions or banning gas from russia would be a _ sanctions or banning gas from russia would be a really seismic thing to do, would be a really seismic thing to do. but _ would be a really seismic thing to do. but i — would be a really seismic thing to do, but i think unless you have germany— do, but i think unless you have germany on board, it'll be really

difficult — germany on board, it'll be really difficult to — germany on board, it'll be really difficult to have a coherent voice on it _ difficult to have a coherent voice on it. , a, difficult to have a coherent voice onit. , on it. the daily mail saying new dash to break _ on it. the daily mail saying new dash to break prudent's - on it. the daily mail saying new dash to break prudent's rep. i on it. the daily mail saying new dash to break prudent's rep. al dash to break prudent's rep. a horrifying amount of money when people are already worried about the cost of living. it’s people are already worried about the cost of living-— cost of living. it's horrifying and completely _ cost of living. it's horrifying and completely unaffordable - cost of living. it's horrifying and completely unaffordable for- cost of living. it's horrifying and i completely unaffordable for most families, — completely unaffordable for most families, you can see people in fuel poverty— families, you can see people in fuel poverty and — families, you can see people in fuel poverty and absolutely no time. so all this— poverty and absolutely no time. so all this could have a big impact on the uk, _ all this could have a big impact on the uk, and — all this could have a big impact on the uk, and what borisjohnson is setting _ the uk, and what borisjohnson is setting out— the uk, and what borisjohnson is setting out in the daily mail here is saying — setting out in the daily mail here is saying that we need to change our energy— is saying that we need to change our energy mix — is saying that we need to change our energy mix and, like i mentioned before, it's— energy mix and, like i mentioned before, it's about looking to the north— before, it's about looking to the north sea — before, it's about looking to the north sea but also returning to some nuclear— north sea but also returning to some nuclear energy generation ideas. the daily mail— nuclear energy generation ideas. the daily mail is referring to this new generation of energy supplies as ntany_ generation of energy supplies as many nukes, a increase in the supply of nuclear— many nukes, a increase in the supply of nuclear generation. that's not a great _ of nuclear generation. that's not a great word — of nuclear generation. that's not a great word to use but that's the way the daily— great word to use but that's the way the daily mail has presented it,

they are — the daily mail has presented it, they are trying to show that the uk is trying _ they are trying to show that the uk is trying to— they are trying to show that the uk is trying to get on the front foot, trying _ is trying to get on the front foot, trying to make sure the uk has an energy— trying to make sure the uk has an energy nfix— trying to make sure the uk has an energy mix that is potentially affordable and, if we are going to be hit _ affordable and, if we are going to be hit try— affordable and, if we are going to be hit by this russian gas issue, that perhaps our own prices, some families— that perhaps our own prices, some families can — that perhaps our own prices, some families can be sheltered from those soaring _ families can be sheltered from those soaring costs. families can be sheltered from those soaring costs— soaring costs. counterintuitive to start doing _ soaring costs. counterintuitive to start doing more _ soaring costs. counterintuitive to start doing more drilling - soaring costs. counterintuitive to start doing more drilling in - soaring costs. counterintuitive to start doing more drilling in the i start doing more drilling in the north sea when we are supposed to be heading towards net zero? absolutely, but let's be on of —— honest, none of this will happen overnight, even though we only rely on about 4% of energy from russia. other countries like holland and germany rely on it much more. none of this will happen tomorrow. but you're quite right, it is at odds with our return to renewables and change our energy policy altogether. but we are in very dramatic circumstances, different than we were two weeks ago, never mind a month or a year ago. so a change in

strategy may be the best way, because as you rightly say in the prospect of energy bills of £4000 a year, it will be ruinous for the vast majority of people. utterly unaffordable. _ vast majority of people. utterly unaffordable. kate, _ vast majority of people. utterly unaffordable. kate, the - vast majority of people. utterly unaffordable. kate, the metro. vast majority of people. utterly - unaffordable. kate, the metro says, "pull yourfinger unaffordable. kate, the metro says, "pull your finger out," the former head of the army said extractor digit and let's get this done, slightly more classy. he says we should be taking far more refugees into the uk. n should be taking far more refugees into the uk-— should be taking far more refugees into the uk-_ into the uk. i think it's a really interesting story _ into the uk. i think it's a really interesting story from - into the uk. i think it's a really interesting story from the - into the uk. i think it's a really i interesting story from the metro because — interesting story from the metro because you have the ex head of the army _ because you have the ex head of the army saying that the uk has capacity to take _ army saying that the uk has capacity to take ukrainian refugees. one of the interesting things he says here is this— the interesting things he says here is this comment was made to sky news, _ is this comment was made to sky news, but — is this comment was made to sky news, but the metro thought it was so good _ news, but the metro thought it was so good they put on the front page. he says _ so good they put on the front page. he says in _ so good they put on the front page. he says in the uk, we have a recruitment crisis and employment crisis, _ recruitment crisis and employment crisis, there are jobs for people. isaac— crisis, there are jobs for people. isaac is— crisis, there are jobs for people. isaac is trying to get across the message — isaac is trying to get across the message that we have the capacity to take people from ukraine, there are 'obs

take people from ukraine, there are jobs available, and may britain's rhetoric— jobs available, and may britain's rhetoric around immigration and the way that— rhetoric around immigration and the way that the home office has tried to set— way that the home office has tried to set things, we changed our entire immigration system to a points—based system, _ immigration system to a points—based system, skills —based. so we have this repetition right now and the x head _ this repetition right now and the x head of— this repetition right now and the x head of the army is saying, let's try and _ head of the army is saying, let's try and move away from that. he says the uk _ try and move away from that. he says the uk must _ try and move away from that. he says the uk must be open—hearted, and it's a _ the uk must be open—hearted, and it's a good — the uk must be open—hearted, and it's a good message to have on the front— it's a good message to have on the front page — it's a good message to have on the front page. the it's a good message to have on the front nae. ., it's a good message to have on the front page-— front page. the i also has a good message. _ front page. the i also has a good message. "uk — front page. the i also has a good message, "uk urge _ front page. the i also has a good message, "uk urge to _ front page. the i also has a good message, "uk urge to help - front page. the i also has a good - message, "uk urge to help refugees," and though foreign sector is blaming the home secretary of problems of escapees trapped in calle. yesterday, the home office was saying we've rounded 50 visas out of the thousands of people from the ukraine, only 50 visas granted. the

home secretary in the house of commons denied that, saying she had people down in calais to assist anyone coming to the uk. we established earlier in the day today that there was no one at the time, no visa application office, they are being told to go to either paris or brussels, get a visa to come to the uk. and many of them were being turned back. in yet another chapter of the history of the home office failing to rise to the occasion. memberjohn reed when he took over the home office, saying the organisation wasn't fit for purpose. i'm being told tonight that some 300 have been granted, but even that is tiny compared to the republic of ireland, they've granted 1800 people visas to go and live there. mulled over, a tiny little country, was purchasing more per hour than we've granted visas to during the course

of the last two weeks. it is a lamentable record, in gary lineker tweeted today that we've actually welcomed more russian oligarchs than ukrainian refugees. find welcomed more russian oligarchs than ukrainian refugees.— ukrainian refugees. and paul and takin: ukrainian refugees. and paul and taking about _ ukrainian refugees. and paul and taking about a — ukrainian refugees. and paul and taking about a million _ ukrainian refugees. and paul and taking about a million people. . ukrainian refugees. and paul and taking about a million people. in| taking about a million people. in fairness... —— poland. taking about a million people. in fairness... -- poland. the - taking about a million people. in fairness... -- poland. the daily| fairness... -- poland. the daily telegraph. _ fairness... -- poland. the daily telegraph. as — fairness... -- poland. the daily telegraph, as the _ fairness... -- poland. the daily telegraph, as the progress - fairness... -- poland. the daily telegraph, as the progress of i telegraph, as the progress of putin's forces is somewhat bogged down, tell that to the people being shelled, who have lost relatives, but there is a chink here of an opportunity, how realistic is there? hardly. you see the proposals, what he's proposing ukraine should do is declare itself a neutral state, stop any fighting despite the fact that they are being attacked, and declare themselves a neutral state, recognise crimea as part of russia

and recognise eastern breakaway