These are natural changes that occur while aging. They cannot be stopped but it is possible to slow the rate of these processes. This can be done by changing one's lifestyle (diet, exercise, etc). The science of aging is not yet fully understood; therefore, it is difficult to determine an absolute limit of 200 years.
The current record for human lifespan is held by Jeanne Calment, who lived to be 122 years and 164 days old. While this is an impressive achievement, it is still far from the 300-year mark. In fact, there is currently no scientific evidence to suggest that it is possible for humans to live for such a long time.
This has led scientists such as Jan Vijg at the Albert Einstein College of Medicine in New York to conclude that there is probably a biological limit on the maximum human lifespan, which he puts at about 115 years old.
Scientists have found a way to lengthen worms' lives so much, if the process works in humans, we might all soon be living for 500 years. They've discovered a "double mutant" technique, when applied to nematode worms, makes them live five times longer than usual.
And although a human's average life expectancy has increased by decades in the last 100 years or so, our maximum life span hasn't shifted anywhere near as significantly. Many biologists think extending human life to that degree is currently impossible.
It might be hard to imagine, but it's true: As of today, if you are 35 years old or younger it is quite probable you will live to the see the year 2100 and witness the beginning of the 22nd century.
Normally, as time passes, our cells undergo changes: Our DNA mutates, cells stop dividing, and harmful junk—by-products of cellular activity—builds up. All these processes together cause us to age.
While, as shown with creatures such as hydra and Planarian worms, it is indeed possible for a creature to be biologically immortal, these are animals which are physiologically very different from humans, and it is not known if something comparable will ever be possible for humans.
The average life expectancy of baby boomers, Gen X, Millennials, and Gen Z are different. Compared to the 70-year life expectancy of baby boomers and the 85-year life expectancy of Gen X, Gen Z is predicted to have a life expectancy of over 100 years.
In 7 years, humans might be able to live indefinitely, predicts Ray Kurzweil, a futurist with a track record of accurate predictions. He believes that with the technological advances and expansions, we're witnessing today in genetics, robotics, and nanotechnology; we'll soon have nanobots running through our veins.
The oldest known age ever attained was by Jeanne Calment, a Frenchwoman who died in 1997 at the age of 122. Ms. Calment is also the only documented case of a person living past 120, which many scientists had pegged as the upper limit of the human lifespan.
Jeanne Calment set the absolute record for long life. She died when she was 122, in 1997. Since then, no one has lived any longer. Vijg's team looked at global databases on lifespan and found it peaks at around 100 and then falls back down again.
AI-Based Research Suggests , Reversing Human Age , May Be 'Biologically Impossible'. New research suggests that the process of aging can potentially be slowed but not reversed.
Tiresias, the blind seer of Thebes, over 600 years.
Japanese life expectancy
This low mortality is mainly attributable to a low rate of obesity, low consumption of red meat, and high consumption of fish and plant foods such as soybeans and tea. In Japan, the obesity rate is low (4.8% for men and 3.7% for women).
Meet Hinat, a Nabataean woman who lived 2,000 years ago in what is now Saudi Arabia.
Life was very different for human societies 20,000 years ago. Humans hunted animals for food and had just started living in settlements. Unfortunately, very little evidence from this period exists.
The answer, it turns out, may lie in the meaty diets of their early human ancestors and the evolution of genes that protected them from the many hazards of carnivory.
That's because humans need cells to do things other than just divide and make new cells. For example, our red blood cells transport oxygen around the body. "We make cells commit to a function, and in doing that, they have to lose the ability to divide," Martínez said.
Predicting this timing is tricky, to say the least. But Kurzweil says one crucial step on the way to a potential 2045 singularity is the concept of immortality, possibly reached as soon as 2030.
To date, there's only one species that has been called 'biologically immortal': the jellyfish Turritopsis dohrnii. These small, transparent animals hang out in oceans around the world and can turn back time by reverting to an earlier stage of their life cycle.
Living forever means you can learn everything you've ever wanted to know and achieve everything you've ever dreamed of doing (in theory). Even better – if your family and friends lived forever too, you'd be able to experience all these great things with them!
It is expected that by 2070 life expectancy at birth will increase to 89.8 years for women and 87.7 years for men – an increase of about 5 and 6.5 years for each sex, respectively.