We have been thinking for years that, after the midlife crisis, old age is synonymous with happiness. This researcher thinks it’s a hoax

We are happy during adolescence and late youth, but as the years go by we become increasingly sadder, more unhappy, more miserable. At some point, in our late 40s to early 50s, we hit rock bottom. And once there everything tends to improve. “It’s statistics,” we said. What we did not suspect was that the statistics could be ‘trick’. Happiness is U-shaped. “Happiness is a slippery slope until we hit the bottom at some undetermined point in middle age. From there, it climbs back to the levels of youth.” That’s what I said a 2008 study than by Blanchflower and Oswald with data from more than half a million people. Over the following years ( here an example from 2017), studied in some detail how firm this U-shaped trend was; Everything seemed to indicate that this was the case. Until Fabian Kratz and Josef Brüdel from the Ludwig Maximalian University of Munich they realized of a small – possible – problem. Wonkblog A fundamental problem. What if happiness steadily decreases with age and what we see in the aggregate graphs is just a statistical effect? Kratz has been studying for years happiness and, as explained in New Scientistis increasingly convinced that the U simply does not exist. Reviewing the scientific literature, the authors found studies that justify a “stability“in happiness throughout the years; a”increase” or progressive descent; a inverted U; a U normal; and a curve like of waves (promotions, relegations). The problem is “that all studies on age and happiness have incurred biases that have distorted their results.” The other form of happiness. By correcting them, Fabian Kratz and Josef Brüdel came to the conclusion that it is true that happiness shows some stability around the last 50, but it does not rise at any time. Kratz and Brüderl (2021) But why? It is important to keep in mind that this work is essentially methodological. But Kratz’s central idea is that previous studies they didn’t realize that “after a certain age, happiness seems to increase only because unhappy people have already died.” The least happy people they tend to die before, which would cause an overrepresentation of the happiest at older ages (literally, as said our colleague Andrés Mohorte, pure survivor bias). According to this theory, “that old popular story” through which retirement would open a window towards a fuller and more satisfying life is just that, a story: a lie. Or, perhaps, a strategy. Because, in short, “there is a lot of evidence about how humans experience a bassoon psychological in middle age” (Blanchflower and Oswald, 2007; Steptoe, Deaton and Stone, 2015; Graham and Pettinato, 2002), but there is very little about the relationship between that downturn – that unhappiness – and quality of life. As we said quite a few years ago“we’re about to see what happens to the millennials when they become unhappy” and maybe that is behind a part generational battles. But facing the future with the certainty that things are going to improve is not the same as facing the future with the certainty that things are going to get worse. The science of happiness has never been so depressing. Image | Garloncio In Xataka | If the question is “where is the secret to happiness,” an expert believes it is hidden in these 15 statements

A viral message claims that “AIs can access group messages” on WhatsApp. It’s a manual hoax

There are many WhatsApp users You are receiving a disturbing message. It indicates that “if we do not activate an advanced privacy option, AIs can access group messages, see phone numbers and even obtain personal information from the mobile phone… even in private chats.” The message is nothing more than a hoax that was already spread in the summer and that uses WhatsApp again as a means of dissemination. We explain why. manual hoax. According to this hoax, the chats you have on your WhatsApp could be at the mercy of tools like Meta AIthe chatbot that Meta integrated into WhatsApp some time ago. That would imply that they could read everything you write and write to you if you don’t take that immediate action. Although the notice may originate with good intentions, it is false: there is no invasion of privacy. Or at least, none that we didn’t already know. WhatsApp message that is being spread and that is nothing more than a hoax. Advanced chat privacy. The function “Advanced chat privacy” was presented by Meta months ago and its objective was none other than to offer more control over the dissemination of content shared in a conversation. The idea is to be able to limit the ability of group participants when redistributing messages and multimedia files. Specifically, and as They already pointed out in Genbeta a few months ago: Prevent messages from being shared in other chats, preventing you from using the forwarding option. Block automatic saving of media filessuch as photos or videos, in the users’ gallery. Disable the ability to use AI features within the chat, such as invoking Meta AI by typing its name. What does that option do then? Just the opposite of spying on you: it protects you more, in fact. Above all, other participants share things that you do not want to be shared. With this you can block group messages from being sent to other contacts (including chatbots), but you can also block Meta AI from being used within those specific chats. From reading your private messages, nothing. Goal AI, the chatbot integrated into WhatsAppcan’t see the private messages you’re sending with someone else. The only way this chatbot can access those messages is if you explicitly share that message with her. To do this you have two options: Share the message with AI: for example, by copying and pasting it into a conversation with Meta AI, ChatGPT or any other chatbot. Invoke Meta AI in the chat: if you write “@meta AI” in that private chat, you will make this chatbot able to access the messages of the chat in which it has been mentioned. WhatsApp’s AI only reads what you let it read. Precisely with the “Advanced chat privacy” option you can prevent the use of Meta AI from being invoked in those private chats (with another person or a group). If you do not do this, Meta AI will be able to access the messages in which you mention it or to which you give it access so that it can summarize them, for example. We continue to use end-to-end encryption. It is convenient to remember that when we use WhatsApp we do so with messages that are end-to-end encryption. Not even Meta (nor its AI) can read them, nor can they access or read group messages, including information such as phone numbers or personal information. Don’t worry. The conclusion is this: that viral message is nothing more than a textbook hoax, and everything it says is false. Meta’s AI is not and will not spy on you, and only accesses messages when you summon it. This AI cannot “spy on you alone”, enter your mobile phone through WhatsApp and steal your private chats or your phone number. What it will use to train its AI models—if you don’t prevent it— are your Facebook and Instagram postsbut of course, those are public. In Xataka | How to translate WhatsApp messages: converting them from any language to Spanish

That pleasure of scratching when something pikes you is a hoax. And our mothers already knew

A summer afternoon, a Zumba mosquito in your ear and at minute you already have a red lump in the arm. The first thing you do is scratch, one, two, three … up to ten times or more. And the more you scratch, the more you want to continue. Your mother warns you: “Don’t scratch yourself, it’s worse!” And now it turns out that science is right. Scratch does not relieve. Researchers at the University of Miami They have demonstrated that scratching is not an effective method to calm the itching. On the contrary: it activates what they call the “itching cycle.” The more you scratch, the more the skin is inflamed, the more histamine it is released and more itch. A vicious circle difficult to break. So what do I do? The recommendation is clear: if you can resist the impulse to scratch, do it. And if not, choose to rub gently with your fingers or stroke with a soft brush. As the team led by Tasuku Akiyama explainsgently caress the skin, even to the side of the exact point that itchs, send signals that block the itching before it reaches the brain. A year later, the same effect It was checked in another experiment with 61 volunteers With a simple trick: pass a makeup brush slowly on the skin. In addition, in the face of histamine -induced itching – a classic molecule in allergic reactions -, It was seen that soft skin friction Sensation also decreases. According to Dr. Trisha Pasricha in her column for Washington Postthis technique can reduce up to 12% plus itching than a simple scratch. What if I crawled? Scratching relieves momentary because the generated pain inhibits the itching signal in the nervous system. That is the reason that it is so pleasant. The problem It arrives later: Active scratching immune cells called mast cells, which release histamine and other inflammatory molecules. The result is more inflammation and more desire to scratch. This was demonstrated by a study by the University of Pittsburgh, Posted in Science: When mice were prevented from scratching – with protective necklaces or eliminating sensory neurons – inflammation decreased dramatically. However, not everything is negative: the same team, led by Daniel Kaplan, discovered that scratching also helps eliminate bacteria such as Staphylococcus aureusone of the most common in skin infections. This would explain why, despite its damage, scratch has remained for millions of years in evolution. Cats, dogs, horses and practically all animals are also scratched. How does itching occur? Not everything that brushes our skin causes itching. As Dr. Pasricha remembersa cotton shirt does not usually bother, while wool does. It is the spatial contrast theory: when only a small group of nerve fibers is activated, the brain translates it as itching. If the activation is broader or more intense, the signal becomes pain. On the other hand, According to The Conversationin the spinal cord there are inhibitory neurons that act as filters: they let or block the itching signal. When these “guardians” fail, chronic itching may appear, a problem that affects about 8% of the population. Another way is through infection. Just see someone scratch or even an insect video to start feeling it in our own skin. Dr. Zhou-Feng Chen Remember that this phenomenon, studied in several experiments, demonstrates how the brain unconsciously mimics the sensations of others. Have you already entered itching when reading this? A double -face protective function. In the background, the itching fulfills a defensive function: we are alerted to possible threats such as insects or irritating substances. Scratching, although pleasant, is a brief relief that inflammation usually worsens. Instead, caress or rub the area offers a lasting relief without damage. The next time a mosquito ruins your night, remember: scratching gives momentary pleasure, but also worsens inflammation. Science coincides with the same as your mother: better a caress or a brush than desperate nails. Image | Freepik Xataka | Compact, practical and very cheap: this is the device to keep mosquito bites at bay

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