happiness is for everyone. human payments are very different from primate. we have a totally ridiculous romanticize view. nature a there and david and this is climate change. pregnant sex pull happiness in pre books, you'll get smarter for free. books on the how do people get enough vitamins to stay healthy if they live in areas where little grows more on dw science show. also coming up power plants able to grow and outer speed. and why it can be hard to sleep when following a tv series. welcome to tomorrow today. ah, the news

people with sleeping disorders can only dream about getting a good night's rest. the many things can ramos asleep worries or stress or getting work done, or excited? watching a horror film can cause as well. so can a tv series with cliffhanger ending suspense tension pushed to the limit and then right in the middle, the classic cliff hanger ending design, just suck viewers in to watch the next episode and often deployed by streaming

platforms like netflix. young people are particularly susceptible lunch and they stay up late watching and tie the next day. late night watching could impact sleep and all kinds of ways at the university of freeburg and switzerland, media, academic and dominique is carrying out research. she's about to conduct an experiment to analyze how cliff hanger endings affect our sleep. not only made a cause last leave, but also all or how we sleep. it's a relatively new field. the emotions play a key role in dramas, but there's been little research into how they impact sleep quality. dominique places a sensor on each person's finger to track their pulse. it's not easy to sleep with a racing heart. subjects also undergo

a saliva test. does mastic? what's like this measurement, it shows how stress and along the lines are, reveals the level of cortisol in the body that caught this woman that's released to my stress. so we want to compare the levels at the beginning with those at the end after the group is finished watching the phones area, the highest impact list from that when we get off on the same procedure is repeated with a 2nd group of test subjects that has asked a colleague to monitor them, so there's one small but key difference in the test that the 2 groups will undergo . let's get to michael, but he will get by the degree if you said, yeah, i've actually watched the same series, but with different tending one group to see a common doing while the others have a cliff hanger with a lot of hispanic, one of us, i think they see at the aim is to see if the group that saw the cliffhanger ending is more agitated afterwards. 6 to stick up with interval. we gundy it so the

light softened. let the cameras roll, the things are pretty casual, relaxed like a whole movie. but the subjects are being watched closely here in the control room, the researchers can monitor how they're responding in real time. they're watching several episodes of orphan black, a science fiction thriller for the group watching without the cliffhanger ending. the clip will finish slightly earlier on a relaxed note. but the other way to tend to build up for live suspense, with a sudden unresolved ending at the after 3 hours of watching, it's back to reality. the test subjects are then asked to fill out a questionnaire on how they're feeling. they also submit

another sample of saliva. the other group does the same to provide a comparison. dominique fields in her team have now carried out the same experiment on more than a 100 test subjects. the results are crystal clear. those who saw the cliffhanger ending had a much higher pulse at the doors. they also had increased levels of cortisol. while the group that saw con, ending the cortisol levels, went down as the evening progressed. planning women from short, seen, uncertain ending had a big impact powerfully affecting the level of physical and mental agitation. stock baseless, is there any way to mitigate that effect? the researcher has a very simple tip. i start to give, i don't finish on a cliff. hang on, let me start the next episode and watch it for another 5 or 10 minutes. wait for

a relatively calm moment while you relax. and then switch off this week isn't was fun side. look it up. ok, it shuts off so much easier to do than one. it's tense and exciting and expensive upsized the us english button. so we don't have to ditch netflix to get a good night sleep. but a more intelligent approach could help at times and don't stay up all night watching time for a quick and then move on. no cliffhangers here are next report revolves around nutrition. carbohydrates are among the nutrients that we need. they are found in many types of food, like bread or fruit and vegetables who's protein has many tasks in the body. it helps fight infection for one proteins are found in fish and meat, but also in grain and nuts. fence from things like butter and oil, provide energy and vitamins are vital pharma,

capitalism. but what happens when the best vitamin sources are available? ah, extreme conditions like those polls composed many challenges for human life. so one victim and containing plants can't grow. how can anyone survive long term for today's research as victim in sources need to be brought in by asked that's how scientists get by during months long distance and on talk to this means fruits and vegetables can be available every day. a 100 years ago. american ethnology? yeah, most definitely had a different approach. during his extended trip to the architect,

he took his cue from the indigenous in you, it eating only me and state. the healthy experts will long baffled by how the populations didn't suffer from victim and deficiencies. despite the lack of variation and that diet, whenever they getting it to me and see without fruit or vegetables, the answer was surprisingly simple. to me to feels quails, fish, and rain day contains all the victims necessary, including the come and see no nathan nutrients will last because the new never could meet. they traditionally eaten rules the me to that to be more palatable when it's fresh, before it's time to freeze the traditional nomadic people's in the distance of africa rarely eat meat, camels transposed told that goods and the key to that survival to eat. so why is the bed winds and why rex get victims?

the answer appears straightforward at 1st. during this stops, you know, a sees where fruits and vegetables are plentiful, the new method, so pass applies to the next block of said journey. but often that traditional mila porridge only has crush dates on it. and dates contain no m m c. that means that during their travels across the desert, the nomad hydrates but knows it and see. so all they have is the minimal amount of victim and see that bodies can store it was because they never traveled, stretches longer than 2 weeks before reaching the next day. so they're constantly on the me. interestingly, they only keep male camel's,

me, it's a different story with her just to keep her like him and kenya they can travel for weeks at a time. thanks to the female camels. these milk as the primary source of nourishment they stay healthy because common milk is rich and victim and see under variety of other nutrients. and so you, for millennia, people have managed to live in some of the most in region. life may have been talking with amazingly pittman deficiencies have not been a major obstacle. the crew of the international space station also live in pretty extreme circumstances, but their food is a bit more varied than in the arctic. along with the ever popular pizza, astronauts can also look forward to home grown vegetables.

reno chowdhury from india had a question about that target. how our plans able to ro in outer space me down on earth. they use gravity to fix their was to the ground where they can access water and nutrients. plants director leaves and flowers towards the lighting to grow and blossom. they also need air. for, for the synthesis. any plants in outer space would die from cosmic radiation, and from being flash frozen at $270.00 degrees below 0. like humans kinds to need a protected environment. the international space station does have heat like an air, but no gravity, meaning liquids behave differently than back home on earth. that's why researchers

have developed planned pillows fitted with growth media, as well as a week to secure the seeds in place and provide them with water. the vegetable production system is the living heart of the mini on board greenhouse g, as it's in formerly known, was installed on the i s s. in 2014. initially with 6 romaine lettuce, seed pillows plants were last due to water stress. while one failed to germinate, but a month later, the crew was able to harvest 3 magnificent specimens. in december of 2015, the crew dined out for the 1st time on their very own home grown space salad. a welcome break from the usual priest drive fer researchers have spent for decades looking into why plants grow in 0 gravity. what they found out was that plants can

actually develop without gravity, by taking their bearings from the light. new experiments are being devised to determine what like conditions they thrive, and best tests have also shown that genes are expressed differently in 0 gravity, especially those involved in sell was the research is geared towards long term missions had a deeper into space that will largely have to survive without being resupplied from earth. in 2016 nasa astronaut scott kelly picked and carefully assembled the 1st flowers in space that were selected as a practice run for other class that needed longer time to flour. in fruit like tomatoes, there's any petals have a bitter taste but certainly boosted the crews morale. yes, another benefit of gardening and space. the decades to come, i will see astronauts flying too and perhaps even colonizing the moon and is and when they reach far from mars,

they'll definitely meet automated greenhouses to get their daily portion of fresh fruits and veggies. ah, what is red? why do you have a science question you'd like us to answer spending as a video test was voicemail. if we feature it on the show, you'll get a little surprise from us as a thank you. i'm just use you can find more fascinating stories from the world of science on our website and on twitter. it's possible to simulate 0 gee, in an aircraft. during a parabolic flight of plane climbs at an angle of 50 degrees before going over into a di for some 22 seconds those inside the plane experience, 10. gravity feels like

a reporter connor dylan went on board the flying laboratory. and so the question of whether there was more joy in my heart or fear by heart today, i would have to say that yes, there was plenty of joy. i was really, really excited for this flight. so there were definitely a couple of things that i had to think about when i was up there in the 0 gee aircraft. one of them was focusing on the right parts of the aircraft to help me feel less air sick or to have less motion sickness i use. i really wanted to go around and see as many of these experiments as possible as they were being done. that's a really rare opportunity to basically be able to step inside

a laboratory. and here you had 8 different experiments happening all at the same time. you were in effectively 8 different labs that was pretty amazing the use .

so would i want to do this again, going inside a 0 g aircraft. i'm surprised to say that i think my answer is no. at least standing here right now. of it is really, really surprisingly hard on your body and sure, i love doing flips and twists and turns and feeling the effects of 0. gee, it is really, really fun. but it's also extremely exhausting. it makes you feel sick to your stomach, so i'm lucky. people don't have that. i had it very strongly. so i would stand here and say i had a wonderful time with the european space agency today. and i don't ever need to do it again. perhaps next time a reporter might prefer to join scientists, working to save trees here in brazil, atlantic forest and all over the world attempts are being made to rescue endangered indigenous species. ah. ready our next report goes to south eastern germany

where conservationists are trying to save a species of tree that goes back 150000000 years. ready this u tree in the bavarian forest national park is one of the last of its kind forestry sciences. martin showed that his colleagues are doing their best to take care of the trees. they used to grow abundantly here, but now they are endangered. in the middle ages, you would with much sought after for building weapons due to deforestation. the trees eventually became scarce. there are currently only $150.00 you trees in the park. each one was recently documented. the hint is this, you tree behind me is probably several central, so we're always delighted to finally use grand ancient trees for them for their age is a challenge because the new doesn't, labs are all quite old. we're in dire need of young you saplings now that can

multiply in the future because that's why we must do all we can to help the i'm just now going ahead and listen in some areas of the park matter shows and his team can swing into action the goal is that more evergreen use will grow here. that requires naturally occurring trees that are both young and healthy. the problem is that saplings are popular food source for deer. rabbits also love to nibble on young plants to protect them. charles and his team put up fences around the use which will help give them a chance to propagate are kept within the enclosure to replace the trees, which like all living things will eventually die. others are related. that means we dig up the saplings and replant them 10200 or 300 meters away. this increases their valuation to a number capable of survival was it's again, it's unclear at the saplings grown here are healthy and strong enough. since few

mother trades remain would share excess carbon and nitrogen with seedlings. the genome of the use has been significantly weakened, but genetic researchers are on the case. the more uniform the genome, the less adaptable the saplings are. especially now since climate change has altered the conditions in which they grow. to increase the likelihood that the remaining trees will develop resilient seeds, martin sholtes and his team also use some unusual methods. use can thrive in the shade, but they're more likely to flourish in sunlight. for that surrounding trees might be cut down. ah, marty shows hope that as a result, the mother trees will be able to bear healthier for targeted harvesting, could help their see grow into young trees. revitalizing the use in the bavarian

national park. it's challenging wording work, the saving, critically endangered animal species from extinction is also challenging work. recently scientists and conservationists managed to create embryos of northern white rhinos using the frozen firm of deceased males. time will tell whether the bio rescue project may succeed. we'll be following that. the next project is not about rhinos, but about trying to bring a breed back from extinction. or a very similar one, at least with the help of ancient dna. this, this darwin, since he was born on march 24th 2020 high hopes had been pinned on this cough with his symbolic name. young cow marks a giant step and the effort the breed, but all rocks which have been extinct for centuries,

the scientists call their mission to create an aux like cow. the hour and project says probably in the heart, it's a problem that we have is that the all rocks have largely vanish genetically by cell. buffington is just b. as i know, what we can do is take its domesticated descendants domestically, handled and then cross them with one another in a targeted way to create a breed of a capital as similar as possible to the or at least not calmed. these are some of the anamosa conspire hope among the scientists, the impressive bulls at low sharpie and central germany. large cows in a nearby forest. under mixed heard on a meadow near the river rind. each of them possessed his qualities, once borne by the original or ox. that's a sort of fun item genome of the british rocks has been sequenced and compared with those of modern cattle breeds on in what you'd call the top 10. was a read from spain called the question it's warrants maybe a bit on the small side to play. then we have another impressive breed ology. now

the largest green of capital, because it's built is very similar to that of all right. the horns of the right shape up, we know the material to work with is i'm going to, i'm convinced that good. all right, well you can, you change the color, we can change the color. then we have the marina castle, another from italy, and finally the what to see cattle. this breed has the largest horns in the world, but we need them in our breed back project in precise doses in order to increase the size of our crossbred animals. this way, the backward animal will resemble the or rapidly even more than hawks and of the dash darker. the offices habitat was closely connected to human settlements with thousands of years by the ice age the or ox for repairing and case painting hunted for food. and finally, the animal was domesticated that became extinct in the middle of the 17th century. this reconstruction of an all wrong drinking one reveals one of the main

reasons why the all russians no longer a living wild animal in europe today. it was already being hunted in the new list period, horns in particular worth the paper trophy and believe the prophy in violence. not something had consequences. the world had retreated in the middle ages. migrating from west to east has been if we look at the final 150 years of the history of the rocks in their animals that is still existed in modern day. poland but had already disappeared in germany at last. the goals were shot in 1621. the last cow die and probably of natural causes in 1627 will and as my troops told us to this day or ox remains are still found along the upper rind. molecular, biological experiments have shown that both achieve the height of up to one meter, 80 centimeters at the shoulder, and weight as much as one and a half comes the overall shape that we're environment like few other giant habits.

this may 1 day, again, be true of its descendants. if the scientists are last get that way. the hour and projects has produced even more costs since the end of march 2020. these creatures own offspring generation f 3 could decide the success or failure of the breed back project. linda 5th and if i can, maybe with the es 3 generation, we'll have animals in 2 or 3 years that we can say are very, very close to it. and that would then be a select group that could last for several generations until it is stabilized to such an extent that we can assume the offspring would look like the original around . we're talking about a timeframe of 10 years, which is fair. not too hopeful. we may be able to provide the actual link lasting results live and decade with life for life. and can the true or rocks of your have been lost forever. but chances to breathing a modern day identical looking or rocks like cow looking very good indeed.

ah, that's all for today. we'll be back next week with another exciting addition of tomorrow today. until then. bye bye. ah. the me. the news . the news the news,

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politics, but culture. an interview with monica federal commission that the culture and the media have a see handle the challenges posed by demand. demick was always, that's a fight so that the creative sector was also gets attention the. she evaluated 2nd term in office as muscle. i am very passionate about what i do aren't 2130 minutes. d w ah, was in december 2019. the european councils new president show me shows important on a ground breaking mission. i have a clear joules to make the 1st die with it, so i don't see any other planet by 2015. but not all

member states supported and some persuasion is required. some time when the game, diplomatic poker, interesting commonplace and alliances behind the scenes, a big climate summer starts august 5th on d. w. oh, oh oh, what people say matters to us me. that's why we listen to their stories. reporter every weekend on d. w. ah. in many countries, education is still a privilege. hardy is one of the main causes some young children work in my job. instead of going to class can attend classes after they finish looking. for millions of children all over the world can't go to school.

the we ask blind. because the education makes the world more just the make up your own life. the w. made for mines the ah, me, this is the w news and these are top stories. german chancellor anglo merkel has been visiting villages devastated by the via flooding. at least 156 people have dined. medical says she is horrified by the real devastation and germany must do more to tackle climate change. she met with the.