Day 72: Calcium: element 20.
Calcium: atomic number 20, symbol Ca. It sits halfway down the periodic table, an ordinary element, but one that quietly holds the world together.
20 protons, 20 electrons: enough symmetry to feel like a kind of peace.
Forged in the dying heart of stars and flung into space in brilliant clouds of dust. Over eons it settled into oceans, shells, and stone, and eventually, into us.
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Every bone, every tooth, every signal of contraction or thought carries the trace of that celestial dust.
We think of it as solid. the architecture of the body. but calcium’s real genius is in movement.
It is the messenger between worlds: between nerve and muscle, between impulse and action, between the possible and the actual. Each heartbeat, each breath, each fleeting thought begins with a shimmer of calcium ions crossing membranes, announcing life’s intention to continue.
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In balance, it is grace itself. The heart beats with poise, muscles tighten and release in effortless conversation, the body hums in quiet order.
But when the scale tips, when there is too much calcium, as there is in me now, that grace falters.
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This week my body felt extra heavy with it. My heart beats too fast, then too slow, unsure of its rhythm. Creating a strange exhaustion.
My doctor told me that excess calcium changes the heart’s conduction. that it can make the beat sluggish, stiff, as if the mineral itself were beginning to fossilize the flow. The messenger becomes the barrier.
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There is a strange poetry in this reversal.
The same element that builds coral reefs, mountains, and skeletons -that gives the planet its own bones- can, in abundance, begin to still the life it once supported. Strength without motion becomes stone.
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Today as the fluids brought me balance back, I imagined the calcium as stardust still at work, forming and unforming, ancient as the moonlight that touches my skin.
I feel both fragile and monumental.
I am reminded that life depends not on abundance but on balance; not on holding fast, but on knowing when to yield.
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Calcium is profound because it remembers both the beginning and the end. It is the element of structure, but also of surrender.
of shells that once held life and now rest on the ocean floor. It teaches that endurance isn’t rigidity, but the ability to be remade.
And so, even now, when my heart hesitates, my muscles twitch, when I feel the weight of this mineral pressing from within, I try to listen. The lesson is to try and not listen to the fear, but to the quiet rhythm beneath it.
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The starlit chemistry that insists: move, adjust, begin again.
Perhaps this is what it means to be alive:
to carry the remnants of exploding stars in your bloodstream,
to tremble on the edge between form and flux,
and to keep finding your rhythm
in a universe that never stops changing.
