If you live with attention-deficit hyperactivity disorder, or ADHD, you know firsthand how this condition affects your brain. One of the biggest impacts is the way ADHD can make it difficult to ...

Defending champion Madison Keys stunned by Jessica Pegula in early Australian Open exit, but delivers a message of rare serenity on defeat and resilience in press conference. Australian Open 2025 ...

Twenty years after the introduction of the theory, we revisit what it does—and doesn’t—explain. by Clayton M. Christensen, Michael E. Raynor and Rory McDonald Please enjoy this HBR Classic. Clayton M.

New forms of fentanyl are created every day. For law enforcement, that poses a challenge: How do you identify a chemical you've never seen before? Researchers at Lawrence Livermore National Laboratory ...

Peter Gratton, Ph.D., is a New Orleans-based editor and professor with over 20 years of experience in investing, economics, and public policy. Peter began covering markets at Multex (Reuters) and has ...

Elizabeth Blessing is a financial writer and editor specializing in growth investing, high-yield stocks, small caps, and gold investing. Thomas J. Brock is a CFA and CPA with more than 20 years of ...

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