4 doctors weighed in:

What causes eyes to get heavy when you are tired?

4 doctors weighed in
Dr. Andrew Shatz
Ophthalmology
3 doctors agree

In brief: They tire as well

When you are tired, your eyelids want to close so that you can sleep.
The heavy sensation comes from your attempt to fight the urge to keep your eyes closed.

In brief: They tire as well

When you are tired, your eyelids want to close so that you can sleep.
The heavy sensation comes from your attempt to fight the urge to keep your eyes closed.
Dr. Andrew Shatz
Dr. Andrew Shatz
Thank
Dr. Beth Friedland
Ophthalmology

In brief: Eyelid reflex

The eyelid muscles react to your need for 'shut eye' by closing when you are physically tired.
You can try to counteract this by trying to stay alert, splashing cold water on your face, etc.

In brief: Eyelid reflex

The eyelid muscles react to your need for 'shut eye' by closing when you are physically tired.
You can try to counteract this by trying to stay alert, splashing cold water on your face, etc.
Dr. Beth Friedland
Dr. Beth Friedland
Thank
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