Microsoft's spreadsheet program can do way more than you might imagine. These are the hacks and tricks you need to know.

Following a successful Kickstarter last year, a combination tuner, string winder and metronome is now available to buy. There ...

Cerebral arteriovenous malformations (AVMs) are an uncommon type of central nervous system vascular anomaly that have the potential to rupture and cause intracranial hemorrhage. AVM hemorrhagic risk ...

Lindsey Ellefson is Lifehacker’s Features Editor. She currently covers study and productivity hacks, as well as household and digital decluttering, and oversees the freelancers on the sex and ...