Homeopathy for mental fatigue: lessons from a randomized, triple blind, placebo-controlled cross-over clinical trial.
Dean, Michael Emmans, Karsandas, Raj, Bland, J Martin et al.·BMC complementary and alternative medicine·2012
This study tested whether a homeopathic remedy called Kali phos 6x could help people with mental fatigue focus better. Eighty-six university students and staff took either the remedy or a placebo, then did a concentration test. The remedy did not work better than placebo, and the researchers found that the test was too easy for most participants to show whether the remedy made a real difference.