GABA Supplementation, Increased Heart-Rate Variability, Emotional Response, Sleep Efficiency and Reduced Depression in Sedentary Overweight Women Undergoing Physical Exercise: Placebo-Controlled, Randomized Clinical Trial.

Gamma-aminobutyric acid (GABA) serves as a pivotal neurotransmitter implicated in the pathogenesis of stress, anxiety, sleep-related disorders, and heart rate (HR) reactions. Heart-rate variability (HRV), modulated by the sympathetic and parasympathetic branches of the autonomic nervous system (ANS), offers insights into cardiac autonomic control and cardiovascular well-being. The present study aimed to explore the impact of GABA supplementation on emotional metrics, sleep quality, and HRV in sedentary women with overweight or obesity partaking in physical exercise.

Anatomical description of the brain wax models of Museu da Pharmacia de Ouro Preto.

Background: In 1839, the Escola de Farmácia de Ouro Preto pioneered the teaching of pharmaceutical sciences in Brazil. At the end of the 19th century, the Escola de Farmácia possessed a French collection of anatomical models, some made of wax and . The models were a critical part of teaching anatomy, particularly in an era of paradigm changes about how the human brain works.