Improve Cognitive Functions Reishi Polysaccharides from Ganoderma lucidum Promote Cognitive Function and Neural Progenitor Proliferation in Mouse Model of Alzheimer’s DiseaseGanoderma lucidum Triterpenoids (GLTs) Reduce Neuronal Apoptosis via Inhibition of ROCK Signal Pathway in APP/PS1 Transgenic Alzheimer’s Disease Mice Mesima Improvement of cognitive functions by oral intake of Hericium erinaceusFlavonoids and cognitive function: a review of human randomized controlled trial studies and recommendations for future studies