Habit formation is the process by which behaviors become automatic. Habits can form without a person intending to acquire them, but they can also be deliberately cultivated—or eliminated—to better ...

Slow-wave sleep (SWS) refers to phase 3 sleep, which is the deepest phase of non-rapid eye movement (NREM) sleep, and is characterized by delta waves (measured by EEG). Dreaming and sleepwalking can ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Marguerita is a Certified Financial Planner (CFP), Chartered Retirement Planning Counselor ...

The snow burst through the trees with no warning but a last-second whoosh of sound, a two-story wall of white and Chris Rudolph’s piercing cry: “Avalanche! Elyse!” The very thing the 16 skiers and ...

Investopedia contributors come from a range of backgrounds, and over 25 years there have been thousands of expert writers and editors who have contributed. Dr. JeFreda R. Brown is a financial ...