To test the hypothesis, the scientists from the University of Texas a & m took the rats age, two middle-aged is tested, that both groups show the ability of learning and memory that is similar. The following two months, they provide the substance resveratrol is a four-week period prior to assessment of learning ability and memory, the researchers found that there are mice. development study. The memory and work of a good mood. Additionally, these mice with cell growth rate and developed in the hippocampus, which is a part of the brain used in memory and learning.