Aug. 25 (UPI) -- Living through heat waves is making us age faster, a new study said. Extreme temperatures are increasingly common because of climate change, potentially causing widespread and long-lasting damage to the health of billions, scientists warned. Scientists analyzed 15 years of health data from about 25,000 adults in Taiwan and found that two years of exposure to heat waves could speed a person's so-called biological aging by eight to 12 extra days. While it seems like a small