Those of you who might not have read every one of my hundreds of blog posts might have missed the story about my bout with “plantar fasciitis.” I had a persistent pain under my right heel. It was painful when I walked and I liked to walk every day. When I described the symptoms to some of my family and friends, more than one suggested I visit a podiatrist. A podiatrist, after all, is an expert in medical issues of the foot. 

I made an appointment and sure enough, she confirmed the diagnosis several of my friends had mentioned: “Plantar fasciitis.” She showed me an exercise to stretch the tendons of my foot; gave me a prescription for megadoses of a non-steroidal anti-inflammatory; and she cautioned me to stop walking so much until my symptoms improved. I followed this advice, but my foot actually began to hurt more. After about a week of this, I went back to walking and my symptoms improved but the pain was still there. 

A week later, I was watching TV with my wife and cats and in our nice warm dry basement (Shout out to Be-Dry). I often like to “fiddle with stuff.” On this particular occasion, I happened to “fiddle with” the sole insert in my shoes. I removed the insert and noticed that a small pebble had somehow managed to lodge itself under the heel of the insert on my right shoe. 

Now, when I call it a ‘pebble’ I do so simply because I don’t know of a better word. It was larger than a grain of sand, but not by much. When I say ‘pebble’ I’m afraid you might be thinking of something more like the pretty pebbles that one might find beach-combing. You would not have seen this ‘pebble’ unless you were crawling along the beach with your nose about two inches from the ground. It was about the size of a lower case ‘o’ in this font size. Hard. Sharp. But tiny! I thought could this possibly be the source of my pain? No. No. It’s much too small.

Nonetheless, I removed it and my ‘plantar fasciitis’ disappeared. 

I was reminded of this today walking my dog Sadie who most often walks with her nose almost on the ground. Sometimes, I see a distinct wet stain that she stops and examines. Most times, I have no idea what she is sniffing at. I presume it’s often a bush leaf where the scent of another dog is particular strong. She pays attention to places I have seen a rabbit or bird earlier. She likes to retrace the path that our other dog Bailey took if I happened to have taken him out to pee. But it isn’t only where he’s peed. She seems to know the path he walked. Similarly, if I have taken the car somewhere in the last 48 hours, she goes over and sniffs that. She sniffs at my door only if I drive somewhere alone. But if I go to the grocery store, she also sniffs at each door that I have take groceries out of. 

Yes. We all know dogs have a good sense of smell. But—seriously—how many molecules can she sense? Apparently, dogs can detect some smells in concentrations as small as 1-10 molecules per milliliter of liquid. A very small number of molecules could spell the difference between an escaped prisoner being tracked and recaptured or escaping to a new country and enjoying decades of freedom. Small thing—big effect.

I recall reading a science book as a youngster that showed a man holding a test tube. At the bottom of the test tube was a small amount of white powder. The caption said that this was enough botulism toxin to kill everyone on the planet if properly distributed. That seems an odd use of the word ‘properly’ but leaving that aside, it is clearly extremely toxic. How does the toxin work? It interferes with your internal communication system. Your brain sends a signal to your diaphragm muscle to contract, but the signal never gets to the muscle. Small thing—big effect. 

Small things having big effects is not always about small things causing problems. Small things can also be important in having big effects in a positive way. For example, if you do such a small thing as look around you for beauty, you will often find it. If you don’t, look harder. If you still don’t, then create some or go elsewhere. If you make this small habit, over the course of your entire life, you will fill your brain with much more beauty. That is no small thing. It will impact your health and your behavior toward others. Small thing—big effect. 

There are many examples from sports. Most athletes realize that they it helps to have a physical routine that is unvarying before throwing a baseball pitch, hitting a tee shot in golf, or hitting a tennis serve. Fewer realize that it’s equally important to have a consistent mental routine as well. I found it useful before every golf shot to say to myself, “Hit it perfect—like you know you can.” 

Small things can also make a big difference in terms of what you observe. For instance, in my tennis group, there were, for a time, a high proportion of left handed players. Roughly half of the players were lefties, though only about 10% of the population is left-handed. Of course, it’s fairly obvious immediately that one’s opponent is left-handed. A clear implication is that what constitutes a backhand and forehand are on different sides. A more subtle difference is from the natural sidespin that is put on a shot. A forehand topspin shot, as the name implies, is mainly topspin. Some players hit a fairly flat shot while others—notably Rafa Nadal and, more recently, Carlos Alcaraz, can hit with tremendous top-spin. This shot also has somewhat of a sidespin component and that varies from player to player. Although professionals can alter the degree of sidespin, the amateurs I play with have a habitual way of hitting the ball. As the ball strikes the ground, a right-hander’s shot toward my side of the court will bounce slightly to my right while a  left-hander’s ball will bounce slightly to my left. This means that positioning my feet optimally for the return shot will be somewhat different for various players. 

There are many small differences in how people play. If you notice such differences, you can do a much better job of “reading” what type of shot a player will hit, where they are aiming, and so on. The differences are slight but cumulatively, the impact of noticing such differences is considerable. Small thing—big effect. 

I don’t like to receive flattery and I don’t like to flatter people either. However, I do make a habit of giving people compliments. If you are observant, this is usually easy to do because most people are doing good things most of the time. When I play tennis, for example, my partners and my opponents will often hit excellent shots. I comment on it. It makes for a better game. Over time, it’s better for everyone. Never admit aloud your opponent has just hit a good shot? Keep on your game face? Not my thing. Why make life grimmer and meaner? Someone hits a great serve or a good tee shot or sinks a long putt, I compliment them. I’m impressed. So why not share that feeling? Small thing—big effect. 

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