A dangerous heat wave sweeping the United States on its 250th anniversary has disrupted celebrations around the country.

July 3, 2026 Scientists at UCLA discovered a surprising reason aging muscles heal more slowly. In older muscle stem cells, a protein called NDRG1 builds up and acts like a brake, slowing the cells’ ...

Reflects aggregate amounts for the most recent four quarters, as detailed in the table in the Quarterly Consolidated Financial Information section of the Third Quarter 2026 Report to Shareholders.

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