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.

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