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Photo: Tomohiro Ohsumi/Getty Images

Hip and knee replacements may be the next health care frontier for the Apple Watch, now that it can monitor users' heart rates.

What's new: Reuters reports that 4 hospitals and a handful of other providers are working with Zimmer Biomet, a medical device company, to test an app that would transmit patients’ heart rate, steps taken and standing hours to their doctors.

  • The project is focused on patients who are either waiting for or recovering from a hip or knee surgery — two of the most common procedures in the country.

Why it matters: There are plenty of concerns about just how effective Apple’s heart monitoring will be, and whether the risk of false warning signs outweighs the potential to catch legitimate irregularities.

  • But if the information collected here is accurate and reliable, it will help doctors know whether their patients are following the physical therapy regimens they’re supposed to — which can help avoid complications that would land patients back in the hospital after their surgeries.

Go deeper

Senate Democrats reach deal on extending unemployment insurance

Photo: Alex Wong/Getty Images

Senate Democrats struck a deal Friday evening to extend unemployment insurance in President Biden's $1.9 trillion COVID-19 relief package after deliberating and halting other action for roughly nine hours, per a Senate aide.

Why it matters: The Senate can now resume voting on other amendments to the broader rescue bill.

Capitol review panel recommends more police, mobile fencing

Photo: Olivier Douliery/AFP via Getty Images

A panel appointed by Congress to review security measures at the Capitol is recommending several changes, including mobile fencing and a bigger Capitol police force, to safeguard the area after a riotous mob breached the building on Jan. 6.

Why it matters: Law enforcement officials have warned there could be new plots to attack the area and target lawmakers, including during a speech President Biden is expected to give to a joint session of Congress.

Financial fallout from the Texas deep freeze

Illustration: Annelise Capossela/Axios

Texas has thawed out after an Arctic freeze last month threw the state into a power crisis. But the financial turmoil from power grid shock is just starting to take shape.

Why it matters: In total, electricity companies are billions of dollars short on the post-storm payments they now owe to the state's grid operator. There's no clear path for how they will pay — something being watched closely across the country as extreme weather events become more common.