
Explainers
Extreme humidity can set off smoke alarms
It has been insufferable lately— hot and sticky enough to set off smoke alarms. The Philadelphia region has been especially mugg ...
12 years ago
Genetic test helps explain why anti-depressants work only for some
Choosing a medication to treat mental illness can be a gamble. Some patients don’t respond at all. Others see marked improvement. ...
12 years ago
Listen 4:48Why is the Blue Route called the Blue Route?
That was the color used to mark this route on the 1950s maps that showed three possible routes for the highway that became Interstate 476 ...
14 years ago