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The search for more efficient teaching methodologies is a great challenge for Brazilian educators, since most classes are still traditional (theoretical) and have little student involvement during the learning process. Active learning methodologies, where students play a central role in the learning process, are proving to be more effective and interesting when it comes to acquiring knowledge. Thus we decided to develop an innovative technique for teaching Human Endocrine Physiology, called "Endocrine Circuit." The circuit consisted of eight stations in which students were asked to organize a scheme with cards to answer a specific question about a gland or tissue with endocrine relevance. The effectiveness of the developed activity was validated through a pretest-posttest design, in which the students had to answer a 10-question test. We found out that, after the Endocrine Circuit application, students showed an improvement in the percentage of correct answers for 7 out of 10 questions contained in the questionnaire (P [less than or equal to] 0.05). In addition, the activity showed positive outcomes regarding student's engagement in this study, besides showing to be more efficient than the Brazilian traditional theoretical classes.

Aging is characterized by a progressive loss of physiological function leading to increase in the vulnerability to death. This deterioration process occurs in all living organisms and is the primary risk factor for pathological conditions including obesity, type 2 diabetes mellitus, Alzheimer's disease and cardiovascular diseases. Most of the age-related diseases have been associated with impairment of action of an important hormone, namely insulin. It is well-known that this hormone is a critical mediator of metabolism, growth, proliferation and differentiation. Insulin action depends on two processes that determine its circulating levels, insulin secretion and clearance, and insulin sensitivity in its target tissues. Aging has deleterious effects on these three mechanisms, impairing insulin action, thereby increasing the risk for diseases and death. Thus, improving insulin action may be an important strategy to have a healthier and longer life., (© 2021 Elsevier Inc. All rights reserved.)