D-D-serine Caffeine The mixture of D-serine and Caffeine for prevention of weaken of learning ability by stress suppression of weaken of memory power by stress or enhancement of learning ability or memory power and the functional food composition including it

摘要

The present invention relates to a mixture containing D-serine and caffeine as effective components to have effects of preventing the decline in learning ability or memory caused by stress, reducing stress, and enhancing learning ability or memory. The present invention also relates to functional food comprising the mixture.