A patient's depression-like symptoms were resolved not with antidepressants but by re-engaging with a childhood hobby, indicating he had a 'passion deficiency' in his life.

Stress is thought to be responsible for up to 90% of what a doctor might see on any given day, including anxiety, depression, type 2 diabetes, and obesity.

Journaling is a keystone habit, meaning it's a positive habit that makes it much more likely you will engage in other positive habits, creating a ripple effect.

Alcohol is a sedative, which is not the same as sleep, as sedation is where your brain cells have switched off, whereas sleep involves the coordinated firing of brain cells.

Alcohol has a negative impact on REM sleep, which sleep researchers call 'emotional first aid' because it's the part of the sleep cycle where we process difficult experiences.

Sleeping in different beds can fundamentally improve a relationship because when both partners get better sleep, they have more empathy, compassion, and energy for each other.

To avoid mental fatigue, you should pursue a 'three-dimensional' life where your evening activities, like reading fiction, stimulate different parts of your brain than your daytime work.

A part of your brain called the 'system of design' or 'wants brain' pushes you to seek things like chocolate or shopping that scientific studies show actually leave you feeling more depressed.

Looking back on your past with regret is a form of perfectionism because it's based on the harsh belief that you were capable of making perfect decisions at the time.