penny sarchet and o ksa na pregnancy yet. penny sarchet and oksa na pyzik, pregnancy yet.ugh of the questions and providing 70 answers. of course, there are a multitude of questions that people are asking from right around the world. head to the bbc website, a lot of those questions being answered there. thanks so much for watching so far. now, let's move on. self—isolation, just like social distancing, has become something everyone is talking about. and how do you keep your mental wellbeing when you're minimizing contact with other people? it is so natural, isn't it? perhaps one of the best people to talk to about this is the astronaut chris hadfield — who has spent more than 160 days in space. as you can see, he is waiting to talk to me now. thank you so much for being here with me on the programme. give me an idea of what it was like generally and how you cope with those long periods there in space. haj, matthew. ithink there were two big parallels between there were two big parallels between the type of experience the astronauts up on the space station had and what a l

cambridge university and host of the naked scientist podcast, and also i'm joined from south london by penny sarchetany so much more efficient than other european countries in testing people? that's from anja grey in guernsey. it all comes down to national strategies and so the uk has decided that we are going to be testing people who are hospitalized. they have not really advised on why that is our testing strategy generally speaking but the who is recommending a wider strategy. germany is being able to do that. we are aware there is probably some thing to do with shortage in the supply change and not having enough tests so each country is having to make their own decisions which means it then becomes very difficult to compare case numbers in different countries because obviously those attacks more have more of an idea how many cases there are. in the uk, we really only know about those that are severe enough to be the hospital. crisco may depend somewhat on the quality of the tests themselves whether the tests are for coronavirus or other things as well. can you explain that ina bit things as well