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As a qualified "anti-aging master", how can you not know the ever-changing life extension technology?
Pay attention to the time school to chase the new express column, here contains the freshest life extension information, take you to the first time to link the world's cutting-edge longevity technology trends.
Now there are many people who like to keep birds, like parrots, thrushes, canaries, etc., especially middle-aged and elderly people, raising birds and walking birds is a great pleasure of life for them. Among birds, parrots are particularly intelligent because of their well-developed brains and are the first choice for many birds.
But as you may not know, parrots are also a long-lived family of birds, and the sunflower cockatoo and macaw in the parrot family are the first and second in the list of longevity birds, with a lifespan of 80 and 65 years, respectively.
Why do parrots live so long? Although humans have been domesticating parrots for thousands of years, the scientific community has not explained the problem very well.
In general, the larger the body size, the longer the lifespan, of course, there are other factors, such as diet, social interaction will also affect the lifespan. But even the largest parrots are much smaller than humans, but they live as long as most people. Why?
Recently, the German research team has made a reasonable explanation for this problem, they surveyed 244 different species of 133818 parrots, found that the lifespan of parrots and their brain size showed a strong positive correlation, intelligent parrots tend to live longer. The study was published in Royal Society Open Science.
Brain size is often used as a measure of cognitive ability, and the density of neurons also affects cognitive ability to a large extent. Previous studies have found that parrots and crows have twice as many neurons per unit area as mammals with similar brain sizes, and parrots have essentially close to the number of neurons in higher primates. This shows that parrots' brains are not only larger, but also denser, which makes parrots behave more intelligently, which is also the secret of their longevity.
To better explain why intelligent parrots live longer, the researchers proposed two hypotheses: the cognitive buffer hypothesis and the expensive brain hypothesis.
The cognitive buffer hypothesis holds that larger brains mean higher intelligence, and that parrots with higher intelligence are more likely to live to adulthood or even later life, thereby extending their lifespan. The expensive brain hypothesis holds that longer-lived parrots are smarter because longer-lived parrots have longer juveniles and thus more time to develop their brains.
The two hypotheses are actually explained from different logical relationships, the cognitive buffer hypothesis that the brain is larger because of the cause and the longer life is the effect, while the expensive computer hypothesis is the opposite, that the longer life is the cause, and the smarter is the effect.
Is this also true among us humans? It seems to be. Studies have shown that East Asians have an average brain volume of 1364ml and an IQ of 106, while whites have a brain volume of 1347ml and an IQ of 100, while blacks are lower, and east Asians are smarter overall.
In terms of life expectancy, the country with the highest life expectancy in the world is Japan, with an average of 83.4 years, followed by Hong Kong, China, with an average of 82.8 years, even after excluding economic level, medical conditions, and living customs, East Asians still have the longest life expectancy.
From the above data, it seems that the larger the brain volume, the smarter people tend to live longer, but there is no definitive research to prove it, and the pie is only speculating here.
In addition, the faction also noted that the gestation period for East Asians is generally 40 weeks, while for whites is 39 weeks, indicating that East Asians need longer to develop, which seems to be more in line with the hypothesis of expensive brains.
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