Mast cell activation syndrome (MCAS) symptoms flare in the luteal phase (days 15 to 28) because estrogen is a direct ...

Adrenal fatigue is not a recognized medical diagnosis, but the symptoms are real: morning exhaustion despite sleep, crashing energy at ...

Oxalate dumping is a detoxification response that occurs when you rapidly reduce high-oxalate foods. As tissues release stored oxalate crystals ...

Vagal tone refers to the activity of the vagus nerve, which regulates heart rate, digestion, immune response, and your capacity ...

POTS (Postural Orthostatic Tachycardia Syndrome) is a nervous system disorder in which standing causes heart rate to increase by 30 ...