By Alejandra Borunda – NPR –
Phoenix heat is notorious for the harm it causes in the short-term, like heat stroke and heart problems. Just last year, temperatures there topped 90 degrees Fahrenheit for a record-breaking 188 days. More than 140 of those days surpassed 100 degrees.
A new study published in Science Advances shows that prolonged heat exposure of that magnitude can even modify how people’s genes behave, speeding up aging at the molecular level and potentially impacting people’s long-term health.
