of anger aren’t always tied to personality alone. Research suggests they can also be linked to depression. While depression is often associated with low energy or persistent sadness, it can sometimes manifest through irritability and aggressive behavior as well.
7. Sleeping too much or feeling sleepy
This condition is known as hypersomnia, and doctors note that it’s more than simply being tired. In some cases, autoimmune diseases can trigger overwhelming sleepiness, making a person feel the urge to doze off almost anywhere.
8. Changes in eye color
Doctors point
