Grief and loss affect the brain and body in many different ways. They can cause changes in memory, behavior, sleep, and body function, affecting the immune system as well as the heart. It can also lead to cognitive effects, such as brain fog.

How does grief impact the brain?

When you’re grieving, a flood of neurochemicals and hormones dance around in your head. “There can be a disruption in hormones that results in specific symptoms, such as disturbed sleep, loss of appetite, fatigue and anxiety,” says Dr. Phillips. When those symptoms converge, your brain function takes a hit.

What areas of the brain are affected by grief?

The prefrontal cortex/frontal lobe: The functions of this area include the ability to find meaning, planning, self control, and self expression. Scientific brain scans show that loss, grief, and traumas can significantly impact your emotion and physical processes.