Eternal youth, perfect health possible by 2030, experts say
By Dick Pelletier
Gerontologists consider the
maximum lifespan for humans to be about 120 years (the world
longevity record is held by Frenchwoman Jeanne Calment, who died
in 1997 at age 122). But with rising evidence from biotech
miracles like stem cell therapies and genetic engineering, and
recent nanotech advances that deliver drugs inside cells, some
scientists are starting to believe this limit can be increased.
Aging science has always been
divided between pessimists and optimists. Pessimists argue that
aging is caused by the same inevitable decay that afflicts
machines and inanimate objects. They accept that biology has
evolved repair mechanisms to mitigate the damage, but insist
that these merely delay death long enough to ensure the
reproductive survival of the species.
Optimists counter that all
animals have immortal reproductive cells (“germlines”), and
longevity is determined through systems like these that in
theory, can be altered. They argue that biology has the tools to
cope with wear and tear indefinitely, and with tomorrow’s
biotech and nanotech discoveries, aging could be eliminated
completely.
Award-winning author Ray
Kurzweil supports this optimistic view. In a recent interview
Kurzweil said, “We will soon develop ways to stop and reverse
aging.” By 2030 or before, we will program tiny nanobots to
travel throughout the body and replace aging cells. They will
repair bones and muscles, fight germs, fix mutant DNA, and even
make us smarter.
Cambridge anti-aging guru Aubrey
de Grey recently stated in a LiveScience interview that
by 2030, anti-aging science will enable every adult on Earth to
maintain a biological age of a ’20-something, and never suffer
death from sickness or aging. When asked if he wanted to live
forever, de Grey replied “It’s not really a matter of living
forever; it’s a matter of not wanting to die.”
Newcastle University researcher
Tom Kirkwood explains how our definition of death has changed.
Death used to be defined as the moment heartbeat and breathing
stopped. But then it was found that people could be revived from
this condition, so the concept of brain-stem death was
introduced. Today, even this definition seems inadequate. Many
forward-thinkers now believe that death happens when medical
competencies expire, and with future science, it may be
preventable.
The notion that death might be
cured is not part of today’s mainstream thinking. Nearly
everyone expects to die. Most people cannot conceive of humanity
ever defeating death; but more and more forward-thinkers are
beginning to recognize that eternal youth and health is indeed
an achievable goal.
Life extension enthusiasts
believe that if a crash program similar to the one that put a
man on the moon was launched, everyone on Earth could be
guaranteed indefinite lifespan by 2030 or before. Science-wise,
we are close to realizing this “magical future” – emotionally we
have a long way to go.
In addition, there are tough
issues ahead. Will life lose its meaning in the absence of
death? What will we do on an already crowded planet if people
keep getting on, but few ever get off? Solutions for these
concerns must be found.
However, consider this – we
could be looking at the last generation of humans to die from
disease and aging. How exciting is that.
This article appeared in various print publications and
on-line blogs. Comments always welcome.