Migraines involve the trigeminal nerve sending pain signals to the brain, blood vessels changing pressure, and the nervous system becoming hypersensitive to light, sound, and touch. Regular headaches are typically caused by muscle tension, stress, or eye strain.Calmera targets the physical experience of both. Air CompressionSix airbags apply rhythmic pressure across your forehead, temples, and eye area. For migraines, compression reduces the pain signals the trigeminal nerve sends. For headaches, it releases the muscle tension causing the pressure — the same way pressing on a tense muscle helps it relax. Heat Therapy (Optional)Gentle warmth at 45–55°C loosens the muscles around your head and temples and calms your nervous system. If heat feels like too much during an intense attack, use compression only.