Eventually, aging comes for us all — but new evidence suggests that in key ways, it may be a contagious condition. In a provocative new study published in the journal Metabolism, scientists from South ...

The glorious paper birch outside the window that has for the past three weeks beamed a sunny glow is losing its luster, one golden coin at a time. The 10,000 solar panels the tree has worn since early ...

As days grow shorter and temperatures cool, trees prepare for winter by shutting down food production. This process is called leaf senescence, the aging and eventual death of leaves. Chlorophyll, the ...