Why Do I Wake Up at 3am? Causes and How to Sleep Through
Wide awake at 3am again? Your sleep cycles and body clock make the early hours fragile. What is normal, what keeps you up, and how to sleep through.
Health reference · plain English · since 2017
Look up a symptom, a fear or a feeling.
210 guides on anxiety, depression, women’s health, phobias and everyday conditions, built on NHS, CDC and NIH guidance.
Browse by topic
Full Health A–Z →Latest guides
Every guide →
Tab 05 · Tools
Free self-checks and calculators
Everything is worked out in your browser. Nothing you type is stored or sent.
All tools- Depression & Anxiety Self-Check (PHQ-9, GAD-7)PHQ-9 + GAD-7 · 3 MIN
- Phobia Finder: What Is My Fear Called?45 FEARS · 5 QUESTIONS
- Period & Ovulation CalculatorNEXT 6 CYCLES
- Perimenopause Symptoms ChecklistPRINTABLE FOR YOUR GP
- Pregnancy Due Date CalculatorLMP · CONCEPTION · IVF
- BMI CalculatorKG · LB · STONES
- Guided Breathing ExerciseBOX · 4-7-8 · SLOW
- Symptom Guide16 SYMPTOMS · RED FLAGS
Global Health Watch
Outbreak map and all reports →Ebola · Democratic Republic of the Congo
Ebola disease caused by Bundibugyo virus - Democratic Republic of the CongoPolio
Level 2 - Global PolioHepatitis · Costa Rica
Level 1 - Hepatitis A in Costa RicaYellow fever · Colombia
Level 2 - Yellow Fever in Colombia
Sourced
Guides link the NHS, CDC, NIH, WHO and journal pages they are built on.
Dated
Every guide shows when it was published or last really updated.
Private
Tools run on your device. Nothing you type into them is stored.