Respiração lenta reduz a ansiedade em camundongos sem necessidade de mindfulness

Um novo estudo mostra que a redução da frequência respiratória pode diminuir comportamentos semelhantes à ansiedade, mesmo sem qualquer esforço consciente ou crença em seus efeitos. Os pesquisadores utilizaram camundongos para demonstrar que os benefícios decorrem de mudanças fisiológicas e não de um efeito placebo. As descobertas foram apresentadas em um evento em Los Angeles no início deste mês.

Jack Feldman, neurocientista da UCLA, apresentou a pesquisa no Embodied Minds Summit em Los Angeles no dia 3 de maio. Sua equipe treinou camundongos para respirar mais lentamente usando optogenética, visando neurônios no Complexo de pre-Bötzinger, uma região do tronco cerebral que controla o ritmo da respiração. Após quatro semanas, os camundongos mantiveram a respiração mais lenta e demonstraram menos medo em testes de estresse em comparação com camundongos não treinados.

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