Symptoms that look like depression can sometimes be a "passion deficiency," which can be corrected by reintroducing hobbies and things you love into your life.

When you switch off and have downtime, a part of your brain called the default mode network (DMN) goes into overdrive to solve problems and enhance creativity.

Small, seemingly harmless stressors called micro-stress doses (MSDs), like hitting the snooze button, accumulate and push you over your personal stress threshold.

Research shows that even if you are not looking at it, having your phone in your vicinity uses up willpower and cognitive reserve to resist the temptation to check it.

To achieve mental rest, you must switch from one-dimensional activities like work to varied, three-dimensional experiences like hobbies or fiction that stimulate different parts of your brain.

Sleeping in a separate bed from your partner can improve the relationship because both individuals get better quality sleep, leading to more empathy and patience.

Alcohol acts as a sedative that switches brain cells off, which is a completely different brainwave state from the coordinated firing of cells during true sleep.

A 2010 University of Bristol study suggests that for regular drinkers, caffeine's cognitive boost is simply reversing withdrawal symptoms to return you to a normal baseline.

A quarter of the caffeine from a noon coffee is still active in your brain at midnight due to its six-hour half-life.