Skip to main content
Toggle navigation
testbig
Main navigation
Home
Videos
Reading
Listening
Speaking
Writing
Grammar
Submit
Register
User account menu
Log in
fkETS
Member for
11 years 4 months
My essays:
As people grow older, an enzyme known as PEP increasingly breaks down the neuropeptide chemicals involved in learning and memory. But now, researchers have found compounds that prevent PEP from breaking neuropeptides apart. In tests, these compounds almo
90