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How Stress Affects Our Telomeres (Chromosome / DNA)

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Uploaded by on Mar 9, 2010

Watch how stress effects our genes! The genetic structures called telomeres protect the ends of our chromosomes from fraying. As we age, our telomeres shorten. Stress by way of stress hormones accelerate the shortening of telomeres.

A telomere is a region of repetitive DNA at the end of a chromosome, which protects the end of the chromosome from deterioration.

A chromosome is an organized structure of DNA and protein that is found in cells. It is a single piece of coiled DNA containing many genes, regulatory elements and other nucleotide sequences.

Video Clip from "Stress: Portrait of a Killer"
Produced by National Geographic

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Education

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Standard YouTube License

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Uploader Comments (marlosmassage)

  • Very informative! Thank you for sourcing and uploading this video =)

  • @Oniracom thank you!

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All Comments (11)

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  • Info on telomeres and anti-aging is available at whatisatelomere.info

  • Filmen "Stress: Portrait of a Killer" med Robert Sapolsky er en "must see" i forståelsen af stress, og hvordan stress påvirker vores helbred. Tak for at gøre dette klip af filmen offentligt og nemt tilgængelig. Specielt er forskningen omkring telomers banebrydende!

  • Nature makes perfect sense once again. Before civilization 10,000 years ago, any child born with disabilities would not be able to survive. Nature punished the mother through increased stress, decreased telomeres, and thus shortened lifespan. In Nature's eyes, this is how Nature dealt with supposed undesirables. This would be how natural law would play out prior to the start of our agrarian society.

  • This is a very nice video and people who are interested in this topic additionally should notice the paper by Choi and coworkers (2008) who showed that cortisol causes a decrease of telomerase activity in vitro. I myself investigated telomere shortening in patients with depression and also found a massive telomere erosion based on hypercortisolism due to chronically perceived stress......it's a highly interesting field of research

  • full vid on netflix fyi :)

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