 
                                                                                                    10/14/2025
                                            This year I've undergone Dauphin Horsemanship's Bit Course and indulged a lot of my technical curiosity about equine oral structures and mechanics related to bit use. When we step back and consider what we're doing: putting metal in the mouth of another being for the purpose of control (we say communication... but communication for what purpose?), it is easy to feel some ick factor. As a speech language pathologist who treats dysphagia (swallowing disorder) my primary concern about bits is how they impact the vital mechanical and neurological  process of swallowing in the horse.
Also, as an equine bodyworker and riding instructor, I just don't think bits are at the top of the list of complaints a horse has related to their comfort. If I had a to make an (informed) guess and rank a couple, I'd say access to sufficient movement, emotionally healthy herd dynamics, quality of human communication, and saddle fitting all far exceed bitting issues. 
That's not to say that bits, namely, bit use, isn't something we should carefully consider. Actually, I think rein use is a better way to frame the concern. I have similar concerns about rein use with bitless rigs as bitted. 40lbs of rein pressure vs 0.01 oz is a big difference, and 40lbs of pressure for 0.05 seconds vs 45 minutes is also makes a big difference to the horse. 
I think this article gets it wrong from the start. 
"Metal bits, or at least bits made of solid materials, when is contact with these tissues stimulate pain receptors, such that the greater the pressure, the worse is the experience of pain."
I don't agree that bits operate solely by means of pain receptors. I could cause pain with my gua sha myofascial tool if I wanted to, but I can also release tension and support healthy tissue. 
Some of the references listed are compelling and important, and I would encourage horse lovers and learners to go on and read these studies, remembering what types of horses are included and under what conditions. 
Reading between the lines, this author is globally opposed to "animal use," which is a pretty extreme stance and not one I'm on board with. I cherish our inherited stewardship of domesticated animals and see a lot of mutual benefit in these relationships. 
For more info on bits, how they function, and most importantly to the horse: HOW WE USE THEM, reach out, I'd love to help. 
Follow Dauphin Horsemanship, he's always putting out great info and free webinars to better understand many aspects of horsemanship. 
Comment below to share your experiences, good and bad, using bits with horses. 
                                        
Emeritus Prof David Mellor explains why, from a welfare perspective, the perfect horse bit is the one that stays on the tack room wall.
 
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
                                                                                                     
                                         
   
   
   
   
     
   
   
  