VOA慢速英语:Chocolate Improves Memory and Heart Health

reverse – v. to cause (something, such as a process) to stop or return to an earlier state

cholesterol – n. a substance that is found in the bodies of people and animals

neurology – n. the scientific study of the nervous system especially in respect to its structure, functions, and abnormalities

capsule – n. a very small container that is filled with medicine and swallowed whole

placebo – n. a pill or substance that is given to a patient like a drug but that has no physical effect on the patient

extract – n. a substance that you get from something by using a machine or chemicals