The Real Superhumans
The Real Superhumans and the Quest for the Future Fantastic is a two hour long special from the Discovery Channel which aired in 2007. It Follows four people with what are described as "real life superhuman abilities", a geneticist who created the first chimera of two very different species of rodents, and a scientist on a mission to become immortal. The show was done in a comic book format ending with the common slogan "To be continued" as to indicate that the people of the show and humanity itself is just beginning to venure into a new age, one where genetic manipulation and other technologies to obtain special abilities will be for sale to the general public.
The program postulates that the sole reason for the abilities of these people is due to their genetic makeup. However, many scientists now dispute this orthodoxy, as there are sufficient scientific grounds to think that genetics has limited scope in explaining all human characteristics, and epigenetic processes play a much larger role than previously realised. Firstly, our beliefs, intentions and physiological state has been shown to significantly alter gene expression in animals via epigentic processes. Stress is a physiologic and chemical response to environmental or perceived stimuli, It is very well known that stress and other physiologic responses can affect expression of genes in differing situations. It has also been found that a persons state of mind and stress can affect epigenetic encoding and that changes can actually be inherited.
The most well studied case of our state of mind and physiological condition changing our gene expression is the methylation of genes in various rat studies. Dr Moshe Syf from McGill University in Montreal has studied the relationships between rats and their offspring. Some of the mother rats groomed and nurtured their young, and some hardly did at all. Rats that had been groomed as infants showed marked behavioural changes as adults, they were "Less fearful and better adjusted than the offspring of the neglectful mothers" They then acted in similar nurturing ways towards their own offspring, producing the same epigenetic behavioural results in the next generation. This shows that epigenetic changes, once started in one generation, can be passed on to the following generations without changes in the gene themselves. There were numerous chemical changes detected in the rats brains and major differences had developed between the nurtured group and the neglected group, especially in the area of the hippocampus involved in stress. A gene that dampens our response to stress had a greater degree of expression in the well nurtured rats. The brains of the nurtured rats also showed higher levels of a chemical (acetyl groups) that facilitates gene expression by binding the protein sheath around the gene, making it easier for the gene to express. They also had higher levels of an enzyme that adds acetyl groups to the protein sheath. Randy Jirtle has discovered that he could make Agouti mice produce normal healthy young, by changing the expression of their genes, and without making any changes to the mouses DNA, by feeding them methyl groups. These molecule clusters are able to inhibit the expression of genes, and sure enough, the methyl groups eventually worked their way through the mothers metabolism to attach to the Agouti genes of the developing embryos. "It was a little eerie and a little scary to see how something as subtle as a nutritional change in the pregnant mother rat could have such a dramatic impact on the gene expression of the baby," Jirtle says. "The results showed how important epigenetic changes could be. The tip of the iceberg is genomics... The bottom of the iceberg is epigenetics".
Another issue with the gemonic based explanations sought in the program for each person is that the number of genes in a human chromosome is insufficient to carry all the information required to create and run the human body. It isn't even a big enough number to code for the structure (let alone function) of one complex organ like the brain. Its also to small a number to account for the huge quantity of neutral connections in our bodies. For instance "the Iceman" Wim Hoff in the documentary, was using his state of mind and the resulting physiological changes to directly effect his condition, as to raise his core body temparature he used a meditative technique similar to that of Tibetan monks observed in a Harvard study.. It is reasonable to postulate that epigenetic changes could result from these thought induced physiological conditions that could be inherited, or even artificially genetically enhanced with advances in epigenetic studies.
The show can be found (broken into fragments) on YouTube. 1