expiration

Science now believes that our biological expiration date is more hereditary than we thought.

by

For years, the scientific consensus and popular culture have repeated a reassuring mantra: genes they only determine 20 or 25% of life expectancy. The rest of this fell on our shoulders directly with the lifestyle, diet or even the environment we surround ourselves with. But this figure, which corresponded to old studieshas changed radically. The study. A study published this week in Science has come to shake the foundations of biogerontology. Led by molecular biologist Uri Alon of the Weizmann Institute in Israel, the research suggests that We have been massively underestimating the role of DNA. Something that they have been able to know after cleaning the data from the statistical “noise” with a very resounding conclusion behind it: the heritability of human life expectancy is around 55%. What we knew. The percentage of participation of current genetics was based on research carried out in the 90s and whose key was the definition of “dying.” The oldest studies analyzed cohorts of Danish-Swedish twins taking mortality as a whole. In this way, if one twin died of cancer at 90 and the other from a car accident at 30, the statistics interpreted that genetics had very little influence. The present. But now, Alon’s team has applied a new mathematical model to separate two concepts that used to be mixed up. One of these was extrinsic mortality, that is, deaths caused by external and random factors such as accidents, pandemics or wars. On the other hand, we have intrinsic mortality, which is true biological aging and is not due to an accident, but to the ‘wear and tear’ of the organism over time. In this way, by removing the noise of extrinsic mortality from historical data, the weight of genetics begins to skyrocket. The results. The new study, published at the end of January, is not just based on a simulation but has analyzed decades of records. On the one hand, data from twins born between 1870 and 1900 have been reanalyzed, which are the original studies where the extrinsic factor was included. By removing it, the genetic correlation again became much stronger. The team crossed their models with sibling data for 444 American centenarians confirming that extreme longevity clusters in families much more than chance or shared environment could explain. In this way, the study corrects what experts call prior estimation biases. That is, the 20-25% figures were not wrong. per sebut they included too much “bad luck.” Lifestyle matters. That the weight of genetics is much greater than we think, does not mean that we should abandon the gym and a balanced diet. And although genetics determine 55% of aging, the other almost half continues to depend on the environment and lifestyle. And this must continue to be maintained. On the other hand, this has enormous implications for personalized medicine. If the “expiration date” of our tissues is more programmed than we thought, anti-aging therapies will have to focus much more on editing or modulating that genetic load, and not just on telling us to eat more vegetables (which too). Images | LOGAN WEAVER | @LGNWVR In Xataka | In Spain there are already 148 people over 64 years of age for every 100 young people. And that is a ticking time bomb for the economy.

AEMET has set an expiration date on Borrasca Harry. But what’s coming from Greenland is about to begin

by

On January 17 and 18, AEMET issued a series of special warnings due to a Mediterranean storm that has been causing problems in the Balearic Sea for days. But, in those notices, there was something else: a problem. And no, it’s not just that we are going to the most unstable week of what we have had in winter. And then? In those noticesAEMET describes a blocking pattern that was elongating a trough and favoring a retrograde DANA. That was Harry, a high-impact storm forming in the Mediterranean (and already is leaving snow near the coast). According to AEMET estimatesthe accumulations can be on the order of 200 liters in 48 hours in the Girona area and more than 20 centimeters of new snow in southeastern Iberian. But Harry ends tomorrow and that’s where the problems begin. The jet returns. Because, in parallel, the anticyclonic blockade between Greenland and the Scandinavian peninsula will interrupt the zonal flow and force the polar jet to lower latitude. In fact, it will descend so much that it will focus directly on Spain, guiding fronts and cold masses from the north. Or, rather, we are talking about cold advection with synoptic trajectories. These models still lack consistency, of course: but the models and outputs are converging in this scenario. What should we expect? Right now, the point of greatest risk It is the Mediterranean coast. Although Harry already has an expiration date, it is a storm that can be very intense locally and can cause problems in short basins (with rapid floods). Not to mention the difficulties at the coastal level and the gusts of wind. Then, if we are a little lucky, it will be reactivated.Atlantic storm machine and a train of storms will begin to enter from the west. If we are unlucky, the cold will return. But, well, at the gates of February it is still within what is expected. Image | ECMWF In Xataka | After the cold comes something much more problematic: the explosive cyclogenesis that AEMET predicts for the Mediterranean

If you thought that getting the DGT V-16 beacon right couldn’t be more complicated, the beacons with an expiration date have arrived.

by

Buying an approved and fully valid connected V-16 beacon is relatively simple. Or, at least, it should be. Because to the list of products and companies that market a completely valid product are added the beacons that can continue to be sold… but that will no longer be able to be sold. Yes, the DGT has opened a new list… and now everything is more confusing. The approved V-16 beacons. So that a V-16 beacon is valid by the DGT and is completely approved, the product must meet a series of requirements. Among the most important are the following: Connectivity with DGT 3.0 for at least 12 years Radiate light 360 degrees Maintain irradiation intensity for at least 30 minutes Protection degree IP54 at least Guaranteed operation between -10ºC and 50ºC How do I check it? It must be taken into account that non-approved beacons are being sold on the market despite being completely legal… more or less. And when the arrival of the beacons was approved in 2021, we didn’t know anything about the DGT 3.0 platform. In 2023 it was confirmed that its connectivity with the platform would be mandatory but, by then, beacons without connectivity had already been sold. Right now, they are still on the market selling. These beacons are not valid. We can use them but the DGT will force us to have one approved. From FACUA they point out that there are beacons that are being sold with the DGT badge but that are not approved because they do not have connectivity. Despite everything, they are still on the market. In this situation, the only thing we can do is check if the purchased product is in this list offered by the DGT. It includes each and every one of the products that can be purchased that meets the minimum requirements. The new list of the DGT. Click on the image to go to the official website. Brands and models with certificates with expired validity. Everything seemed, therefore, hands or less clear when it came to purchasing a connected V-16 beacon of those that will be mandatory from January 1, 2026. Until the DGT has added a new list with the name indicated at the beginning of this paragraph: Brands and models with certificates with expired validity. In the description of the DGT to explain what these models are, why they are on this list and what it means, Traffic points out the following: This table shows the brands and models with expired certificates that covered their manufacture and are valid for use by drivers who have purchased them until the end of their useful life. At the time of writing these lines there are three products from the Ledel Solutions CO brand. LTD and another from Ditraimon SL All of them have an end of validity date of 2025. What does this mean? To try to clarify the matter, we have contacted the DGT who have told us the following: “They are beacons that met the requirements in the first approval, but when they went to renew the certificate and had to pass the tests again, they did not meet the required quality criteria” That is, we are talking about companies that have put a valid product on the market. That product, over time, has to pass quality tests again to certify that it continues to meet the minimum required criteria. It was in this second test that they failed and, therefore, lost the certificate that allows them to sell connected V-16 beacons unless they again present a pilot product that guarantees its validity. What if I have one of these beacons? The DGT has confirmed to us that there is no problem. From Traffic they point out that if we have bought or, right now, we buy any of these connected V-16 beacons that are on the market There is no problem because the production runs that have been made until the certificates were withdrawn are completely valid. In theory, we have a guaranteed 12 years of connected V-16 beacon from the moment of purchase, as required by the technical requirements to approve this product. More confusion and more questions. Of course, what is certain is that this new DGT list adds even more confusion to the consumer. And based on the description and the responses from Traffic, it is understandable that a customer may doubt whether their connected V-16 beacon is now valid or not. According to the DGT, we repeat, yes it is. Other questions also arise. If the companies and products that appear in this list as of December 26, 2025 were lost between the months of April and September, why has it not been published until now that they have lost the certificate? In theory and with the answers that Traffic has given us, the companies Ledel Solutions and Ditraimon have not been able to put on the market a new productive run of connected V-16 beacons once the date on which the certificate renewal has been denied has passed, but there is no problem in purchasing one of these products after this date if they were already on the market. Theoretically, they are guaranteed to operate for the required minimum 12 years. Photo | Netun Solutions and DGT In Xataka | Counterfeit V16 beacons: what you should look for to differentiate them from the approved ones

The bad news is that the oxygen of the Earth has an expiration date. The good is that we will not be here to see it

by

We can breathe calm. Also the grandchildren of our grandchildren’s grandchildren. But the oxygen that supports complex life on Earth will not be eternal. Our oxygen -rich atmosphere has approximately one billion years. So, the change will be drastic. A rapid dexygenation. An international study published in Nature Geoscience Details the calculations. After making more than 400,000 simulations on the geological and biological evolution of our planet, Japanese and American scientists came to the conclusion that the Earth will experience rapid dexygenation that will return it to an atmospheric state similar to that of the archaic land of about 2.5 billion years ago. What the sun gives you, the sun takes it away. Until recently, the scientific community estimated the life expectancy of the Earth’s biosphere in another 2,000 million years, when global warming at geological time scales leads to the evaporation of the oceans. But this new model projects a different scenario. According to researchers, the increase in solar radiation will intensify the cycle of carbonates and silicates. This will cause a drastic decrease in carbon dioxide concentrations. With less co₂, photosynthetic organisms such as plants, the main oxygen producers, will die. The result: a vertiginous fall of atmospheric oxygen. If perhaps, anaerobic life will remain. With a millionth of the oxygen we have today, complex life forms will be extinguished long before the oceans boil and the planet is left without surface water. For the vast majority of life forms, whose metabolism depends on oxygen, this will be the end of the road. The model indicates that deoxygenation It will happen at 1,080 million years (with a deviation of ± 140 million years). By then, the earth’s atmosphere will be radically different, with high levels of methane, low carbon dioxide levels, and a total absence of ozone layer. With luck, it will be a world of anaerobic life forms. And what is this data for us. Although we will not affect us, nor the grandchildren of our grandchildren’s grandchildren, the study, funded by the Nexus for Exoplanet System Science Science project of NASA, has important implications for the search for extraterrestrial life. It suggests that an oxygenated atmosphere is not a permanent characteristic of habitable worlds. Oxygen, and its photochemical by -product, ozone, are two of the biofirms that seek space agencies in exoplanets. If the oxygen rich atmosphere of the Earth will last between 20 and 30% of the total life of the planet, other planets similar to the Earth could now have weakly oxygenated or anxic atmospheres. The search for life beyond our solar system will have to expand its scope to other biological firms. Image | POT In Xataka | 20 years of changes in the biosphere of the earth summarized in a wonderful 4K video of only two minutes

Log In

Forgot password?

Forgot password?

Enter your account data and we will send you a link to reset your password.

Your password reset link appears to be invalid or expired.

Log in

Privacy Policy

Add to Collection

No Collections

Here you'll find all collections you've created before.