This week Dr. Dave talks about his show #428 – A Report from The Sexual Frontier with Sex Therapist Marty Klein, PhD
Here is an introduction to that interview…

Dr. Marty Klein has been a Licensed Marriage & Family Therapist and Certified Sex Therapist for 34 years. He has aimed his entire career toward a single set of goals: telling the truth about sexuality, helping people feel sexually adequate & powerful, and supporting the healthy sexual expression of women and men.

Marty is the award-winning author of seven books about sexuality, including the recent Sexual Intelligence: What We Really Want From Sex, And How to Get It. Published in 15 languages, his books have been acclaimed by everyone from USA Today and Psychology Today to Penn & Teller and the Playboy Advisor. His blog and monthly electronic newsletter are widely quoted for their innovative thinking about sex, politics, culture, & the media.

Marty is frequently quoted by the national media, including The New Yorker, Huffington Post, 20/20, National Public Radio, and The New York Times.
Marty fights for the sexual rights of all Americans through his legal and courtroom work. He has been an expert witness, consultant, or invited plaintiff in many state and federal cases involving censorship, the internet, and sexual behavior. He recently gave two Congressional briefings on evidence-based school sex education.

As a clinician, Marty works each week with couples and individuals with a variety of sexual and non-sexual difficulties–over 36,000 sessions to date. An accomplished photographer and musician, he lives in Northern California surrounded by an enormous collection of rock music. His URL is

Here is a link for the article we discussed on Why Kids Text by Hanna Rosin.

You can find the full podcast at


Brain-to-brain interface demonstrated at the University of Washington.

Sometimes, words just complicate things. What if our brains could communicate directly with each other, bypassing the need for language?

University of Washington researchers have successfully replicated a direct brain-to-brain connection between pairs of people as part of a scientific study following the team’s initial demonstration a year ago. In the newly published study, which involved six people, researchers were able to transmit the signals from one person’s brain over the Internet and use these signals to control the hand motions of another person within a split second of sending that signal.

Source: University of Washington

How physical exercise protects the brain from stress-induced depression

Physical exercise has many beneficial effects on human health, including the protection from stress-induced depression. However, until now the mechanisms that mediate this protective effect have been unknown. In a new study in mice, researchers at Karolinska Institutet in Sweden show that exercise training induces changes in skeletal muscle that can purge the blood of a substance that accumulates during stress, and is harmful to the brain. The study is being published in the prestigious journal  Cell .

“In neurobiological terms, we actually still don’t know what depression is. Our study represents another piece in the puzzle, since we provide an explanation for the protective biochemical changes induced by physical exercise that prevent the brain from being damaged during stress,” says Mia Lindskog, researcher at the Department of Neuroscience at Karolinska Institutet.

Study: ‘Skeletal Muscle PGC-1a1 Modulates Kynurenine Metabolism and Mediates Resilience to Stress-Induced Depression’, Leandro Z. Agudelo, Teresa Femenía, Funda Orhan, Margareta Porsmyr-Palmertz, Michel Goiny, Vicente Martinez-Redondo, Jorge C. Correia, Manizheh Izadi, Maria Bhat, Ina Schuppe-Koistinen, Amanda Pettersson, Duarte M. S. Ferreira, Anna Krook, Romain Barres, Juleen R. Zierath, Sophie Erhardt, Maria Lindskog, and Jorge L. Ruas, Cell online 25 September 2014.

Source: Karolinska Institutet

 Brain changes Linked to Prematurity Could Explain The Risk of Neurodevelopmental Disorders.

Natasha Lepore, PhD (From the Children’s Hospital Los Angeles, Press Release)

Disturbances in the early stages of brain growth, such as preterm birth – when many of the brain’s structures have not yet fully developed – appears to affect the brain’s neuro-circuitry, which may explain premature babies’ higher risk of neurodevelopmental disorders including ADHD and autism spectrum disorder.

Researchers led by Natasha Lepore, PhD, of The Saban Research Institute of Children’s Hospital Los Angeles, have located significant alterations to specific surface regions of the brain.  Described in a study published online this week by the journal Brain Structure and Function, their identification of neuroanatomical changes related to prematurity helps explain what brain structure and circuitry are affected, and may lead to designing effective prevention strategies and early interventional treatments for cognitive disabilities.

Source: Children’s Hospital Los Angeles

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