Hormonal shifts, increased weight, and pressure on blood vessels reduce circulation to the legs.
💡 Note: Cramps often peak in the second half of pregnancy—and usually resolve after delivery.
3. People with Sedentary Lifestyles
Sitting all day = weak calf muscles + poor circulation = prime conditions for cramping at night.
🚶‍♀️ Key insight: Paradoxically, both too little AND too much exercise can trigger cramps.
4. Individuals with Certain Medical Conditions
- Diabetes: Nerve damage (neuropathy) disrupts muscle signaling
- Peripheral artery disease (PAD): Reduced blood flow to legs
- Kidney disease or thyroid disorders: Electrolyte imbalances (low potassium, magnesium, calcium)
- Neurological conditions: ALS, Parkinson’s, or nerve compression
5. People Taking Common Medications
Certain drugs list night cramps as a side effect:
- Diuretics (“water pills”) → deplete potassium/magnesium
- Statins (cholesterol meds) → linked to muscle cramps in 5–10% of users
- Beta-blockers (for blood pressure)
- Asthma medications (albuterol)
