You are in free guest mode.
Timed Practice
Revision List
Attempt History
Progress Tracking
Create a free account to unlock these tools
Practice Reading: Multiple Choice, Single Answer
ID: #43395
Melatonin
Most people think of melatonin as a natural nod-off aid. Experts strongly urge people to consult their doctor or a sleep specialist before taking melatonin, in part because the supplement does not address many underlying health problems that may be disrupting sleep. Instead of a lights-out trigger, melatonin acts more like a dimmer switch, turning the day functions off and switching night functions on. So taking a melatonin supplement is sort of like taking a dose in sunset, tricking your body into feeling like it’s nighttime. It doesn’t put you to sleep as much as it tells the body that it’s time to sleep.
What is purpose of this passage?
* Click on the correct answer
Result:
With a free account:
Retry and compare every attempt.
How difficult was this question?
Others found:
100% Easy · 0% Medium · 0% Hard
Saving...