What if the brain age of people were 20 times faster than the average person?
Scientists have discovered that the brains of humans, and people in general, have a much longer lifespan than previously thought.
The findings, reported online Wednesday in Science, show that the average human lifespan is about 70 years, or 1,400 years, according to a paper by a team of scientists led by Yale University.
The average lifespan of a human is about 120 years.
“The average human brain is about twice as old as the average brain of an adult, which is about 20 to 30 times longer than the lifespan of the average mammal,” said Michael Eisenberg, a professor of biomedical engineering at Yale.
Eisenberg and his colleagues compared the brains in people who were younger than 55 years old with the brains from people in their 80s, and then compared the differences in the age of the brains.
They found that the difference in the ages of the brain and the brains is about 3 to 3.5 years.
“The difference between the brains and the age-matched brains is very large,” Eisenberg said.
“We know that aging is associated with brain aging.
This is just the first piece of evidence that the brain is a very long-lived organ.
There are two main explanations for this.
First, the brain can’t age as well as we think.
Second, there is a lot more plasticity in the brain, meaning the brain will develop differently in people of different ages.
It also has a much higher number of cell types and different types of synapses.”
The study looked at the genomes of people from the United States, Europe and China, and the researchers say their findings suggest that the age differences between the brain of people of similar ages are due to genetic factors.
Scientists aren’t sure exactly what causes brain aging, but they believe the cause is probably aging-related DNA damage, including DNA damage from smoking and alcohol consumption.
If the brain were able to keep up with its age, then there could be many more years left in human life than we think, Eisenberg noted.
“If we could just keep going forward, the brains would probably be 10,000 to 15,000 years old,” he said.
In a related study, Eisenberger’s team compared the genomes and brain activity of people who are older than 55 to the brains, and found that older people have a higher number, and more complex, DNA in their brains than younger people.
They also found that they have more complex genetic changes that result in less plasticity, and thus a longer lifespan.
Eisenberger said that the finding that the differences are due mostly to genetics is very exciting.
“It gives us hope that we can keep the brain in a state of constant plasticity,” he added.
“This is a big change, a very important change in the way that the mind works.”
Other scientists involved in the research included Yale University scientists Richard S. Schumacher, of the Institute for Neurodegenerative Diseases, and Paul Kline, a member of the Yale Neurogenetics Center.