Photoinhibition in soybean plants was studied, showing that too much light can slow down the process of photosynthesis in the cells. This happens more often in low light conditions than in bright light. The damage mainly affects a part of the plant called PSⅡ, leading to a decrease in the plant's ability to use light for energy. Luckily, this process is reversible, but the plant may not fully recover its photosynthetic rate when returning to lower light levels.