I put it in my head that the supplement would help me: open-placebo improves exercise performance in female cyclists - Saunders, Bryan; Saito, Tiemi; Klosterhoff, Rafael; Oliveira, Luana Farias de; Barreto, Gabriel; Perim, Pedro; Pinto, Ana Jessica; Lima, Fernanda; Sapinto, Ana Lucia de; Gualano, Bruno (PLOS ONE, 2019)