Our team first came up with the idea of “Memory Bread” when we are struggling in the upcoming test. We thought that it will be so amazing and useful if there is something to eat or drink before test to improve our memory, and which we’ll be doing great in the exams! After lots of research, we found out that catechin has the function of improving cognitive performance, increasing problem solving speed, and even help with Alzheimers. Catechin can be derived from tea-plants, however, there are some impurities such as caffeine, which is the reason why we decided to turn Tyrosine to Naringenin and then to Catechin through 9 steps. Lastly, bread would be a relatively more acceptable vector since most people like it, and thus we put catechin into yeast through transformation.