Immortal Beings

Immortal Beings

Subject – Science and Tech

Concept –

• Hydra are small, jellyfish-like invertebrates with a remarkable approach to aging. They are largely made up of stem cells that constantly divide to make new cells, as their older cells are discarded. The constant influx of new cells allows hydra to rejuvenate themselves and stay forever young.
  • Hydra show that animals do not have to grow old, but that doesn’t mean humans could replicate their rejuvenating habits. At 0.4 inches (10 millimeters) long, hydra are small and don’t have organs.
• Humans have stem cells that can repair and even regrow parts of the body, such as in the liver, but the human body is not made almost entirely of these cells, like hydra are. 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.
• In a 2021 study published in the journal Nature Communications, researchers reported that humans may be able to live up to a maximum of between 120 and 150 years, after which, the researchers anticipate a complete loss of resilience — the body’s ability to recover from things like illness or injury. To live beyond this limit, humans would need to stop cells from aging and prevent disease.
• Humans may be able to live beyond their biological limits with future technological advancements involving nanotechnology. This is the manipulation of materials on a nanoscale, less than 100 nanometers (one-billionth of a meter or 400-billionths of an inch).
• As technology advances, futurists anticipate two defining milestones. The first is the singularity, in which we will design artificial intelligence (A.I.) smart enough to redesign itself, and it will get progressively smarter until it is vastly superior to our own intelligence, Live Science previously reported. The second milestone is virtual immortality, where we will be able to scan our brains and transfer ourselves to a non-biological medium, like a computer.
• Researchers have already mapped the neural connections of a roundworm (Caenorhabditiselegans). As part of the so-called Open Worm project, they then simulated the roundworm’s brain in software replicating the neural connections, and programmed that software to direct a Lego robot, according to Smithsonian Magazine. The robot then appeared to start behaving like a roundworm.