You lie in the dark. The bed feels too big and too small at the same time ... a vast empty terrain where your body cannot settle. The pillow catches each tear and holds it cold against your cheek. You watch the red digits of the clock slice into the next hour. 2:17 a.m. 3:03 a.m. 3:47 a.m. Your mind replays the last conversation on a loop, searching for the exact sentence where everything fractured. Your chest aches with a pressure that is not quite physical, not quite emotional, but a tangled knot of both. The exhaustion is so deep it feels like a second skin. But sleep will not come. Not here. Not now. Not in this bed that still remembers their shape. The Nervous System in the Crucible of Grief Heartbreak is not a soft poetic wound. It slams into the nervous system like a hijacking. The body mistakes emotional rupture for physical threat and floods you with cortisol and adrenaline. Your amygdala, that ancient sentinel of survival, fires off danger signals because the attachment bond has been severed. The biology of this is blunt: a partner’s scent, their voice, even the micro-expectations of a goodnight text become