A recent study involving 23 young men revealed that the scent of dark chocolate significantly boosted their endurance during leg extensions. Participants managed to complete an average of 18 additional repetitions when exposed to the chocolate aroma, yet they did not perceive their workouts as more strenuous. Prior to the experiment, all participants fasted for a minimum of 10 hours. Each individual underwent three exercise sessions spaced several days apart, where they inhaled either melted dark chocolate containing 90% cocoa, milk chocolate with 60% cocoa, or neutral "control" water before each workout. Interestingly, the scent of milk chocolate also yielded positive results, contributing approximately nine extra repetitions on average. Researchers propose that familiar food scents may activate brain responses linked to preemptive eating. Specifically, after smelling dark chocolate, participants reported feeling less hungry and more satiated, potentially influencing their motivation during exercise. However, this remains a theory since the study had a limited sample size and did not assess hormonal levels or brain activity.
Informational material. 18+.