This picture of a plant is representing how boron is essential for proper plant growth. Boron is not used on animals or humans for proper growth because it can cause major health problems. Boron is also important in many industries such as glass and detergent agriculture and manufacture. Pyrex glass is heat resistant and really tough because of the boric acid that was added to it. A small amount of boron is good for us it helps with our bodies' other minerals. Too much can cause serious illness.