Over the last two months, BOTH my big toe toenails have torn right in the middle of the nail - on the other side of the nail bed, IYKWIM. Awful to look at, and a horrible feeling. I'm using nail glue to see it through on the one toenail (to prevent it from hooking and tearing further). And trimmed the other as best I could, and hope that I don't get an ingrown toenail. Applying disinfectant spray twice a day too. The strategies seem to be working okay for now.

How can I prevent this from happening again? All suggestions welcome.

(P.s. I believe that this happens to runners quite frequently. I don't run, but I do yoga regularly, and walk very fast. I guess the pressure on my big toe is hectic for my too soft nails).