The biggest mistake that people with knee pain make

 (Paola Chapdelaine for The Post)

An orthopedic surgeon has built his practice around the idea that our joints can remain strong and functional throughout life, with some basic care and feeding.

House speaker’s wife ministers to Hill staffers, but nonprofit funding is a mystery

How to protect your brain and your family from your phone

U.K. intelligence chief warns Iran is shifting plots to ‘harder targets’

Some who have taken hyped, unregulated peptides have regrets

Elon Musk’s megaphone propels conspiracy theory about James Talarico

After heated hearing, judge orders Trump officials to testify about tree removal

The future job market will break career ladders. Find out who could fall.

RJ Mitte, actor best known for ‘Breaking Bad,’ dies at 34

As Houthis strike Riyadh, Saudi Arabia confronts the costs of U.S. war on Iran

Six Flags shuts roller coasters at six parks after death in Georgia

Ken Paxton took campaign funds from donors with interests before his office

Can this family tackle $100,000 in student loan debt?

When an elephant dies, its body marks the landscape for a decade

‘Make the problem and the solution bigger’: The plan to end the Ukraine war

Lift social media ban on mother-in-law for family peace?

Why mailing a paper check has become so risky

 (The Washington Post illustration; iStock)

Criminals use chemicals to “wash” away the recipent's name and dollar amount, and then rewrite the check to themselves.

Impostor scams have already defrauded Americans of $1.8 billion this year. Here’s how to spot one.

The new vs. used car debate is dead. They’re both expensive debt traps.