Fast food can have several negative impacts on health and well-being according to the document. It can be addictive due to stimulating the brain's reward system similarly to drugs like cocaine. It also provides less energy than nutritious foods since it lacks many healthy nutrients. Additionally, an unhealthy diet relying on fast food can potentially lead to depression since physical health affects mental health, and eating junk food at night may disrupt sleep and cause issues like poor sleep or sleeplessness which increases further cravings for food.