Activate your inferential thinking with Brain Gymnastics is based on a research where it is shown that applying Brain Gymnastics as a playful strategy to a group of children, significantly affects the strengthening of their inferential thinking and the optimization of cognitive skills, improving reading comprehension, since by exercising simultaneously the left and right hemispheres, thinking skills are increased, because the connection between brain and body is activated. This study showed that students' analytical, comparative, critical and propositional skills can be increased. As shown in the surprising results obtained, increasing in them their capacity for analysis, deduction and, most importantly, making inferences, debates and appropriating the information received with their own ideas. We invite teachers, parents, students and readers in general to verify the usefulness of the Brain Gymnastics technique in strengthening inferential thinking.