EXCERPTS ON EVOLUTION

Published July 17, 2021 by Nan Mykel

Now that I’ve driven my potential readers away, I’ll share what’s been on my mind: evolution. It’s an exciting topic, mysterious, and curious, so I’m hooked. The following excerpt is from Nigel Barger’s recent book, Evolution in the Here and Now, Prometheus 2020. “When gene expression is altered by the environment, there can be marked behavioral consequences….Children raised in stressful homes are significantly shorter in stature despite the fact that that height is one of the most genetically heritable traits. Psychological stress inhibits normal growth and development by changing the way that genes are expressed.” So a psychological (i.e., environmental) influence can alter gene expression , thereby shortening stature. (p 205) I’m wondering about the age factor–whether the stress transmitted in utero or during the bonding process might initiate the alteration of the gene expression. Have I not read about babies dying from lack of human touch? I’m assuming here that parents in those stressful homes would exhibit similar stressful and stress-inducing behavior behavior during the birthing process, and their hypothetical level of stress effect a compromised genetic expression. For the latter possibility, birth weights might differ. I posted this because it got my curiosity (“what if…”) going.

10 comments on “EXCERPTS ON EVOLUTION

  • Spot on! A truly exciting topic. The discovery of epigenetic effects invalidates all those identical twin studies that supposedly varied the environment while keeping the genes constant. The environment changes gene expression!

    Liked by 1 person

  • SMiles Nan A Child
    Unattached To
    Breast Who
    Receives Few
    Hugs of Touch
    Gazing into the

    Eyes of

    A Loving
    Mother Most

    Hours Awake

    Loses The Potential
    Development Of

    Mirror Neurons
    To Feel The Pain
    And Pleasure of

    Others That
    Even Makes Empathy
    Compassion And Love

    Fully Possible Yes
    Cold Capitalistic
    Societies Based

    On Acquiring

    THINGS

    Competitively

    Over Cooperation

    Creates Gods That
    Are Monsters

    Instead

    Of Human
    Innate Love at
    Best In Other

    Words

    Humans
    Are Currently
    Creating A Zombie
    Apocalypse With

    Love

    Withering Away
    They Even Call

    This Trump
    Sent From
    The Same
    God of No Love…

    Liked by 1 person

  • Nan, well said. We humans do not factor in environment enough on patients’ medical conditions. You pointed out a couple, but bladder cancer is a bell weather cancer due often to the environment toxins. Children’s brains and lungs develop fully later in life, so the exposure to environmental toxins is greater, especially since they mouth breath more and touch things and put hands to mouth more often. Keith

    Liked by 1 person

  • Please share your own experiences here...

    Fill in your details below or click an icon to log in:

    WordPress.com Logo

    You are commenting using your WordPress.com account. Log Out /  Change )

    Twitter picture

    You are commenting using your Twitter account. Log Out /  Change )

    Facebook photo

    You are commenting using your Facebook account. Log Out /  Change )

    Connecting to %s

    This site uses Akismet to reduce spam. Learn how your comment data is processed.

    Trent's World (the Blog)

    Random Ramblings and Reviews from Trent P. McDonald

    Catxman's Cradle

    Catxman dances, Catxman spins around, leaps ....... // I sing a song, a song of hope, a song of looove -- a song of burning roses. / Synthesizer notes. // (c) 2021-22

    Mapping uncertainty

    When nothing is certain anything is possible

    Ned Hamson's Second Line View of the News

    Second Look Behind the Headlines - News you can use...

    Leadings: Judy Lumb

    Africa 2012 / Britain 2014 / Peru / Standing Rock 2016

    GABBY GRAYWHISKERS

    kitchen talk

    Salted Caramel

    Blogging, Motivation, Lifestyle and much more.

    kindfeelings

    Be kind to yourself and others.

    Walking the Rails

    Basking in the Triumphs and Frustrations of a Disability

    Yolanda och hennes kreativa skrik

    Aspergers syndrom, bipolaritet, fotografi, konst, poesi.

    earthweal

    Poetry of a changing Earth. The grief is real--so is the hope.

    BosssyBabe

    I’m just a girl, standing in front of a bread shop, asking for it to open.

    World.V.You

    Take a few minutes to slow down and think about what's going on in your world...

    Roadtirement

    "Traveling and Retired"

    About the Jez of It

    Poetry, stories and strange odds and ends from the desk of a writer

    Athens Writers Association

    Bringing passionate genius to the foreground in Athens, GA -- 2013-2019

    annieasksyou...

    Seeking Dialogue to Inform, Enlighten, and/or Amuse You and Me

    %d bloggers like this: