Babak Kaviani

Vitamin D2 Supplements May Deplete More Effective Vitamin D3

pouring vitamin pills on palm

A recent study from the University of Surrey found that participants taking vitamin D2 supplements had significantly lower levels of vitamin D3, the more potent form of the vitamin. Researchers suggest vitamin D3 is preferable for supplementation, as it plays a unique role in immune function that D2 cannot replicate.

Blood Pressure Medication Recalled Due to Possible Carcinogens

The logo of the US Food and Drug Administration (FDA) is seen on a sign outside the agency's White Oak campus in Silver Spring, Maryland, on July 17, 2025.

Teva Pharmaceuticals is recalling more than 580,000 bottles of prazosin hydrochloride, a medication for high blood pressure and PTSD, due to potential contamination with nitrosamines, a possible carcinogen. The FDA has classified this as a Class II recall.

Indigenous Constellations

Students in Canada learning about Cree constellations and Indigenous Astronomy Education Canada using a star map.

Learn how First Nations, Inuit, and Métis communities use winter constellations as a calendar, compass, and environmental guide.

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