Sleep expert Dr. Michael Breus breaks down the biology, habits, and chronotypes that shape our nights — and our days.
From the real causes of poor sleep to stress, fear, diet, metabolism, and waking at 3 a.m., he explains the science in a practical, human way.
This interview offers actionable strategies to improve sleep quality, mental health, and long-term wellbeing.

Key Takeaways
• Consistent wake-up time is the most important sleep habit.
• Chronotypes affect energy, mood, and optimal daily rhythms.
• Stress and fear — not just lifestyle — disrupt sleep more than we realize.
• Nutrition, timing, and metabolic health play major roles in sleep quality.