Question

Add a comma or semicolon if needed. Otherwise, submit the text without any additional punctuation.
If people are deprived of REM
their bodies will adjust by reducing the time spent in other sleep stages—a phenomenon called "REM rebound."

Answer 1

Answer:

Add a comma after 'REM.'

Explanation:

If people are deprived of REM , their bodies will adjust by reducing the time spent in other sleep stages—a phenomenon called "REM rebound.