Because of its mass, a battery takes a long time to change temperature. If a vehicle sits out all weekend in a zero-degree environment, it might take 30 hours to warm up the battery. Use the outside ...

There are many ways to gauge how strong and healthy you are. Here are some of our favorites. Credit...Clockwise from top left: Sarah Karlan, Ashley Barker, Gritchelle Fallesgon, and Adria Malcolm for ...

The Peloton functional threshold power test (known most often as the FTP test) is a brutal 20-minute slog that is, well, uncomfortable to do. It's also important, especially if you want to start ...