4. Aggressive behavior
Aggressive behavior can be a sign of depression. Researchers say that depression does not always appear with sadness.
5. Sleeping too much
Hypersomnia is a disorder, i.e., sleeping too much. Doctors say that some autoimmune diseases may cause the intense feeling of wanting to sleep anytime and anyplace.
6. Changes in eye color
If you are under 45 years old, a white or grey ring around the cornea of the eyes means you may have high cholesterol.