Anosmia — loss of smell — is often associated with depression and cognitive decline, indicating deep neurological links.

Chronic pain can physically rewire the brain, strengthening neural pathways associated with pain perception.

Priming — brief exposure to a stimulus — unconsciously influences later responses.

Cognitive dissonance causes discomfort when holding conflicting beliefs.

The amygdala processes fear and emotional responses and can trigger the fight-or-flight reaction in milliseconds.

Financial stress is one of the leading causes of anxiety.

Psilocybin (magic mushrooms) is showing significant promise in clinical trials for depression, addiction, and end-of-life anxiety.

Confidence can influence perception of competence.

The planning fallacy causes people to underestimate how long tasks will take — even knowing about the bias.