National security, unlocked. Each Thursday, host Mary Louise Kelly and a team of NPR correspondents discuss the biggest national security news of the week. With decades of reporting from battlefields ...

Julia Kagan is a financial/consumer journalist and former senior editor, personal finance, of Investopedia. Chip Stapleton is a Series 7 and Series 66 license holder, CFA Level 1 exam holder, and ...

Sean Ross is a strategic adviser at 1031x.com, Investopedia contributor, and the founder and manager of Free Lances Ltd. Yarilet Perez is an experienced multimedia journalist and fact-checker with a ...

We developed an optogenetic tool based on tetanus neurotoxin — a protease that cleaves the synaptic vesicle fusion protein VAMP2 to inhibit neurotransmitter release. We show that this light-controlled ...

How do you calculate your investing returns? And how does that number compare to the professionals or to the S&P 500 or your investment advisor? The answer might seem simple: (Ending of year value) / ...

Each type has similar benefits, although everyone responds differently to the hormones. Hormonal methods can help regulate the menstrual cycle, reduce heavy bleeding, and alleviate symptoms of ...