Noise

Thanks for joining me for another edition of the SerenityThroughSweat blog.  This week I want to talk about noise.

Maybe not in the typical sense that we think of it. There are different types of noise, and they all play a part in disrupting not only effective communication, but our general happiness and even our health.

I found the idea of noise disrupting our health in the book Lifespan by Dr David Sinclair.  Dr Sinclair’s  message condensed down to an elevator pitch, is that ageing is a disease that can be treated, halted, and even potentially reversed. 

A significant part of ageing is noise in the communication between our genes and our cells. Minimizing that noise, and ensuring genes and cells effectively communicate, keeps cells healthy, operating properly, and young.

Dr. Sinclair goes on to quote Claude Shannon, one of the founding fathers of information theory back from 1948.

Shannon’s noisy channel coding theorem, says that “however contaminated with noise interference a communication channel may be, it is possible to communicate digital data error free up to a given maximum rate through the channel. (a mathematical theory of communication, 1948)

Dr Sinclair uses this theory of information transfer as an example for how our genes and cells communicate, as well as what we can do to minimize the noise, thus maximizing the error free data transfer (effective communication)

This got me thinking about the types of noise we experience in interpersonal communications, some of which I recognized without knowing they had their own specific domains. Physiological, physical, psychological, and semantic noise all play their own part in disruption.

Physiological noise refers to anything going on within our personal body that might hinder communication. This could be a headache, hunger, fatigue or other physiological conditions. Think those Snickers commercials. Why don’t you have a Snickers, you don’t listen so well when you’re hungry.

Physical noise refers to disruptions that are physical in nature but external to the receiver. Think headset/radio/phone malfunction, a crowded room, or even a bright and distracting light.

Psychological noise refers to disruptions that are internal to the receivers thought process. If you are preoccupied with another problem, or day dreaming instead of listening that would be psychological noise.

Finally semantic noise is a misunderstanding of words between the sender and receiver. This could be due to lack of shared knowledge, language barrier, or cultural differences.

There is no shortage of barriers to effective communication. There is always some noise present, and often there is a lot of it. The constant noise we live with, makes determining Shannon’s maximum error free data transfer rate a crucial piece of information to know and apply.

Staying at or below the applicable Shannon rate for a given exchange will ensure the message is transmitted effectively. If you have ever had a conversation at a loud concert, with a foreign speaker, a toddler, or someone with a bad hangover, you already understand self limiting your rate of data transfer through the given channel. (If you’ve ever been the hungover one this is greatly appreciated)

Taking account of the noise around us, and the overall capacity of our channels of communication is a demanding and everpresent task. One that helps pave the path to serenity.

just a walk in the park

Thanks for joining me, stay safe and stay sweaty my friends.

Pleasure

Thanks for joining me for another edition of the SerenityThroughSweat blog.  This week I was listening to the Huberman lab podcast episode 32 on pain and pleasure, and it brought me back to something my highschool rowing coach used to tell me.

Dr. Huberman is a Neurobiologist and professor at the Stanford school of medicine and his podcast covers a number of topics with a scientific and specifically a neurobiology approach to various topics.

Dr Huberman, does an excellent job covering very complex scientific topics, breaking down on a mechanistic basis what goes in the body and brain while remaining surprisingly approachable to the novice, unscientific enthusiast.

The episode on pain and pleasure was a two hour deep dive into the various ways we experience and modulate pain and pleasure and how the two are interconnected.  Specifically of interest, to me anyhow, was the research around dopamine reward prediction error by Dr Schulz

The study explored the way that dopamine levels are modulated when behavior is rewarded on a variable schedule.  The best example of this is slot machines in a casino.  Not knowing when you are going to win and then getting a bigger reward than expected makes the behavior more rewarding (from a chemical perspective not necessarily a financial one)

Dopamine is not really a feel good hormone, it is actually a behavior reinforcement and learning hormone.  The dopamine levels in patients did not change significantly and actually dropped after a reward was received.  The dopamine is instead released based on anticipation of the reward so that the behavior used to obtain the reward is what is learned.

This is one reason why athletes feel so connected to their training and preparation prior to a win.  The dopamine is released in anticipation of the win to reinforce the training behaviors.

This same concept can be applied to our own behavior outside a clinical setting. We can regulate our self rewarding in order to continue to motivate behavior.  The thought being, if you reward yourself every time you engage in a behavior you want to keep doing, your dopamine response will gradually decrease.  Whereas if you reward yourself on a variable, intermittent, or otherwise randomized schedule for that same behavior, your dopamine levels (which help drive motivation for that behavior) will remain higher.

The practical application example that was given was rewarding yourself or your teammates after a win or a hard training session.  There is certainly something to be said for celebrating your accomplishments, but celebrating every time can lead to reduced dopamine which in turn would lead to less desire to perform those actions that lead to the win in the first place.

In high school I joined the crew team my freshman year and was lucky enough to be part of a few very successful boats. Competing in both a lightweight eight man boat and a lightweight four man boat, my friends and I won numerous local regattas, placed at the NY state championships and even won a Canadian national championship.

After every win, regardless of whether it was our local club race or a national championship ship our coach would say “enjoy it today, because tomorrow it doesn’t mean shit”.

While that’s not my particular coaching style, and that type of coaching and motivation isn’t for everyone, it seems that it is at least backed by the science of motivation and dopamine reward pathways.

Halloween half marathon by coincidence (not planning on making that one a thing)

By not celebrating our wins and overstimulating a dopamine response, our desire to obtain a reward and thus the behavior that was required to obtain that reward was reinforced.

As with most topics we cover here, and many more we don’t, a delicate balance must be struck to obtain optimum levels of pleasure, dopamine modulation, and serenity for that matter too. In a first world of instant gratification, a self regulated variable reward protocol can help us reinforce good behaviors on the path to serenity.

Thanks for joining me, stay safe and stay sweaty my friends.