Strange effects of testosterone ● Why it’s good not to think too much ● Sleep is good, especially when you need it ● Where do flies fly when they fly?

• Strange effects of testosterone. As you know, in men, a high level of testosterone is associated with increased sexual activity, with pronounced masculine features, with increased combativeness, and so on. On the other hand, it makes women more mustachioed and aggressive. Well, look, that’s not all. A team of neuroscientists from Emory University, Atlanta, conducted several tests on gerbils (small rodents) and obtained surprising results. They put two gerbils of the opposite sex in a cage, the animals mated and, as you already know, they are also cute. In the sense that they like to hold each other. It was at this moment that specialists injected the man with a dose of testosterone. Instead of becoming aggressive as expected, the male became even more affectionate, hugging his mate even more, smacking her, what was on them… the love of the world. When they repeated the experiment, but put two males in the same cage, you will see the grain of the scandal about this little guy who was injected with testosterone! From here, experts say, testosterone and oxytocin, the hormone of happiness, can work together to make a man more protective, more gentle, and not just a fighter, as previously thought. Obviously, gerbils aren’t human, but there shouldn’t be too many differences, because even ours, when testosterone goes to their heads, show a level of intelligence similar to that of rodents. In any case, if there is anything new, we will let you know.

• Why it’s good not to think too much. He said well what he said when he said: don’t tire your mind, let it rest, because you don’t know when you need it! Well, that’s the conclusion of a published study in the journal Current Biology, in which our attention is drawn to the dangers that can arise if we sit and beat ourselves over the head with all kinds of nonsense. And, according to the researchers, long periods of concentration lead to the release of a neurotransmitter called glutamate. It is excreted anyway, and in small doses it is even beneficial. More acacia in large doses! Your brain senses this better than you do, and therefore reduces its activity. That’s why you feel tired, you stop giving results, you stop making balanced decisions, you are miserable in life. Therefore, it is also good not to burden yourself with exhausting mental activity, not to think too much about some things, because you are harming yourself. However, the brain also works in the same way. Namely, when you are tired, he dictates to you to finish the activities that exhaust you as soon as possible, so as not to stress him. This doesn’t always work, and you can tell your boss straight up when he’s making a fuss that you’re not working. If you feel sleepy at work, this is a clear sign that you really need to relax, relieve tension, because such hard-working people have the company on their backs, not a mouthy boss.

• Sleep is good, especially when you need it. Evolution has trained us humans to sleep at night. In theory, we should all be doing this. Unfortunately, not all people can sleep at night, and some even feel more creative, more productive at night. We know! A recent study, published in Frontiers in Network Physiology, however, tells us that not sleeping past midnight has negative consequences, and this practice of sleep deprivation won’t get you very far. Tests carried out on several subjects showed that those who do not sleep at night are much more prone to depression, anxiety, use of tobacco, drugs and alcohol, they eat crazy potatoes, so you will see them with their hands on their breasts much earlier than this should have been Not only that, but until the fateful moment, they tend to make bad decisions because the brain no longer gives optimal returns, they risk financial losses, get sick, only bad ones. In conclusion, after we have taught you not to stress, we now come with an addition and tell you to rest at night, otherwise you will be caught up in other things.

• Where do flies fly when they fly? We don’t know where the flies are going yet because we’re only working on the moth right now. Yes, that’s exactly what we’re going to talk about today, namely insect migrations, one of the least known migrations in the animal world. Basically, it’s in the rooster’s head that they’re misunderstood, that you simply can’t put a GPS in the crotch of a mosquito and then follow it to see where it wanders. For this, several German researchers from the University of Konstanz chose a species of moth, Sphinx ligustri, also called the sphinx. Being slightly larger, one of them can be fitted with a tiny tracking device. And this moth flew away, researchers say in his article in Science, because they felt sourness. Sometimes 80 kilometers in four hours, in a straight line. What’s interesting about these butterflies, as with most insect species, is that although they only live about six months (so no one individual knows how they got there), they all follow the same path. The hair on your arm stands on end because nature can do it! It is not known exactly what is in their head, in their physical body, what compass. It is certain that they annually pass about 4,000 kilometers from Africa to Europe without deviations. What is unknown, but hopefully sheds light on this case, is how they manage to fly in a straight line. Nobody has a clue. Especially since they sometimes fly against the wind, so it’s clear as day that they know what they’re doing. Finally, one more conclusion: you can get paid just for finding butterflies. Which is not bad at all. And no, he does not have to be a deputy or a senator in Romania.