False because even though it can prevent a person from feeling pain , it causes side effects such as impaired learning and memory and lung damage from smoke.
When speaking about the mind-body connection we must realize that in fact the mind is the same as the body. This 'connection' was rather artificially created. Usually we can describe it like this; when you're feeling sad or depressed (if you understand this as a mental state/state of mind) your body is also affected - you sleep more as you're more tired, you feel without energy, etc.
Another common way is to mention pain - when you cut your finger for example (a part of your body) you can experience intense pain (a mental state).
However, it is important to understand that every mental state corrresponds to some changes that have happened in the brain which make us perceive in the world in such a way (pain and depression are both understood as consequences of different neutrotransmitter levels and functioning for example).
Answer: The reason that protein content matters is that it affects the moisture of dough, and amount of gluten (if using wheat flour). Gluten development is extremely important for making bread. Here’s a few random tidbits about flour that you might find useful