Older people are using brain-building software ...

Finding clear, definitive facts about healthy exercise can be difficult. The exercise industry is a multi-billion dollar business, built partially on selling gadgets and supplements to people desperate to lose weight or look attractive. Meanwhile, good workout plans and simple truths lurk in the background waiting for their time to shine. All of this results in lots of misinformation about exercise. We're taking some of those commonly-held exercise myths to task, and we have science to back us up. Let's get started.

There are so many Windows apps out there, that picking a list of the very best, most must-install software for your desktop or laptop feels daunting. We've pored over pages of recommendations, countless forum posts, and lots of comments to come up with this year's Lifehacker Pack for Windows, a list of software champions across four categories: productivity, internet/communications, music/photos/video and utilities.