Table 2.

The hormesis activity of natural compounds in vivo in memory performance

Activity	Compound	Source Plant	Model	Treatment	Remarks	Reference
Memory performance	Epicatechin	Camellia sinensis	Mice	3 mg/kg	Epicatechin increases cognition	[62]
	Epigallocatechin-3-gallate	Camellia sinensis	Rat	10 mg/kg	Epigallocatechin-3-gallate improves cognitive deficit	[55]
	Resveratrol	Ribes nigrum	Mice	2.5 or 5 mg/kg	Resveratrol improves the LTP induction	[59]
	Oleuropein	Olea europaea	Rat	15 and 30 mg/kg	Oleuropein improves the spatial learning and memory impairments	[60]