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It’s Aquarius season and American Heart Month, making it the perfect time to explore the cardiovascular connection between Aquarius and Leo as sister signs.

Sister signs, positioned six months apart on the zodiac wheel, embody opposing yet complementary energies. While they share certain qualities, their expressions differ. Aquarius represents community and the collective, while Leo embodies self-expression and a desire for recognition.

The Heart, the Self & the System: How Leo and Aquarius Are Connected

(I can’t find the original source for this photo I saved on my phone!)

Leo rules the heart and Aquarius rules the circulatory system. So, physiologically speaking, Leo is connected to a big, primary energy that sustains the self (heart), while Aquarius is connected to the blood distribution system. Astrologically speaking, Aquarius is the water bearer, sharing enlightenment with the world—which is aligned with Aquarius’s role of oxygenation and keeping the blood flowing through our bodies.

I think it’s fascinating that as we celebrate this season of love during Valentine’s Day, we’re also bringing awareness to heart health through America’s Heart Health Month, AND — the astrological energy of Aquarius is connected to the cardiovascular system.

Celestial and Physiological Influences

Images pulled from Canva.

Both signs share a symbolic link to the star, though in different forms: Aquarius aligns with The Star Major Arcana tarot card, while Leo is ruled by the sun—Earth’s guiding luminary. Leo’s connection to the sun—the star that sustains life on Earth—mirrors the heart’s essential role in keeping the body functioning (and is also sometimes connected to The Sun Major Arcana card).

This dynamic highlights the relationship between celestial influences and human physiology. By understanding the connection between astrology and our bodies, we gain valuable insights into how to nurture our well-being and deepen our relationship with the universe.

Our physical bodies and astrological alignments tell a shared story—one that reflects how each sign influences bodily functions.

As a side note, the Leo/Aquarius axis can exist as a heart and mind connection, AND — their circulatory system connection does not negate the fact that each sign has other rulerships as well (Leo = spine, Aquarius = ankles, lower limbs)

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