COGNITIVE PERFORMANCE

This study tested whether daily gummies containing L-theanine and lion's mane mushroom extract could reduce stress, anxiety, and improve sleep in university students. 67 students aged 18-25 took either the gummies or no supplement for 8 weeks. The goal was to see if this natural …

This study looked at whether taking a mix of taurine, caffeine, and phosphatidylserine for 10 days could help professional male football players perform better and feel less tired during training. Eighty-one players took either a placebo, a two-ingredient supplement, or the full …

This study tested whether 20 hours of computer-based executive function training could improve thinking skills and reduce mental ups and downs in adults over 40 with HIV-related cognitive problems. About 119 participants were split into a training group and a no-contact control g…

This study looked at how different doses of caffeine affect physical and cognitive performance in 20 female handball players. Each player took a placebo, a low dose (3 mg/kg), or a moderate dose (6 mg/kg) of caffeine before testing. The goal was to see if caffeine improves runnin…

This study looked at whether taking a dietary supplement for 60 days could improve thinking skills and mood in 75 university students. Participants were split into three groups: two received different supplements, and one got a placebo. Researchers measured changes in self-confid…

This study looked at whether adjusting hearing aids helps older adults (60+) communicate more easily and with less mental tiredness. Sixty people with hearing loss who had never used hearing aids took part. Researchers measured listening effort, fatigue, and sentence recognition …

This study tested whether a daily berry leaf extract supplement could improve memory, attention, and mood in healthy adults aged 60 to 80 who had minor memory complaints. Over 12 weeks, 109 participants took either the supplement or a placebo. The main focus was on changes in wor…

This study looked at how caffeine and L-theanine, taken alone or together, affect physical and cognitive performance in 20 competitive athletes. Participants completed strength, endurance, and coordination tests after taking supplements or a placebo. The goal was to see if these …

This study looked at whether a single 30-minute session of moderate-intensity freestyle swimming can improve thinking skills like focus, attention, and mental flexibility in healthy young adults. Sixty people aged 18 to 35 were randomly assigned to either swim or rest quietly. Th…

This study tested whether being active in nature—like walking or sitting in a park—improves thinking, mood, and stress more than indoor treadmill walking or doing nothing. 69 adults were split into four groups and followed for four weeks. Researchers measured attention, memory, s…

This study looked at whether taking creatine and L-arginine together, just once, can improve short bursts of exercise and mental reaction time in healthy, active men. Eighteen men tried each supplement alone, together, or a placebo in random order. They did sprint tests, jump tes…

This study tested whether a single 20-minute session of neuroathletic training—a mix of eye, balance, and coordination exercises—could improve muscle strength, endurance, balance, and thinking in 52 non-athletic adults aged 18-30. Participants were healthy but inactive. The train…

This study looks at how a single session of running at different intensities changes a blood marker linked to brain health (BDNF) and affects attention and self-control in healthy young men aged 18-25. Twelve participants will complete four sessions: low-intensity running, modera…