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Today we're covering how Nvidia makes so much money, changes in F1, and three coffee add-ins to reduce inflammation.

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Nvidia's stock surged Wednesday, pushing the chipmaker's market capitalization past $4 trillion during intraday trading for the first time ever, the company announced. The milestone makes Nvidia the world's most valuable company, surpassing Microsoft and Apple. Shares closed up 1.8% at $3.97 trillion market cap (More).

The California-based company has capitalized on explosive demand for AI hardware since ChatGPT's 2022 launch. Nvidia dominates graphics processing units powering large language models. The chipmaker first hit $2 trillion in February 2024 and reached $3 trillion in June, demonstrating unprecedented growth. How Nvidia makes money.

Despite geopolitical tensions and China export restrictions costing $8 billion in lost sales, Nvidia continues rallying. Shares have gained 15% this month and 22% year-to-date, reflecting sustained investor confidence in AI infrastructure demand. How NVIDIA accidentally struck gold here.

Justice Department prosecutors are investigating UnitedHealth Group's Medicare billing practices, focusing on diagnosis documentation that boosts federal payments, sources said. The healthcare-fraud unit has interviewed former employees about company efforts to record specific diagnoses generating higher reimbursements. The probe includes reviewing doctor training and software use.

Former UnitedHealth doctors told investigators they were questioned about diagnosis-recording practices, bonus payments for reviewing potential diagnoses, and pressure to use specific codes. The investigation examines practices like home nurse visits and specialized software encouraging documentation of lucrative conditions like peripheral artery disease.

UnitedHealth received $8.7 billion in 2021 for diagnoses not documented in treatment claims, according to previous reporting (More). CEO Stephen Hemsley announced the company would review its practices and deploy independent third-party oversight for diagnosis recording following the investigation's disclosure.

Red Bull Racing dismissed longtime team principal Christian Horner on Wednesday after 20 years leading the Formula One team. The 51-year-old Horner oversaw eight drivers' championships and six constructors' titles, transforming Red Bull into one of F1's most successful teams. Laurent Mekies (Wiki) will replace him as CEO.

Red Bull currently sits fourth in the constructors' championship amid declining performance this season, officials said. Star driver Max Verstappen has publicly expressed frustration and been linked with a possible Mercedes move. Key personnel including aerodynamicist Adrian Newey have departed for rival teams over the past year.

Horner faced controversy last year over allegations of inappropriate behavior by a female employee, though he was cleared by investigations. The departure ends an era for Red Bull's only team principal since acquiring Jaguar Racing in 2005 for £1. F1 US fan base is growing.

Registered Dietitian Molly Knudsen analyzed countless patients whose morning coffee routines were sabotaging their health goals. Most people think flavored syrups and sugar just add calories—they don't realize these additions turn beneficial antioxidants into pro-inflammatory compounds.

The breakthrough: Her ingredient swap system identifies which coffee additions fight inflammation on a cellular level versus those that fuel it. Here are the three anti-inflammatory ingredients to add:

Why this matters: Most coffee drinkers assume healthy means flavorless. Knudsen's research revealed the opposite. "These ingredients don't just avoid harm—they multiply coffee's benefits.” Her patients report sustained energy without inflammatory crashes.

Control your motivational states instead of being controlled by them. Most people think emotions just happen to them—bouncing between serious and playful, conformity and rebellion randomly. Reversal Theory cuts through this: you can deliberately trigger these psychological "reversals" through environment, activities, or reframing. Stuck in self-sabotage? You're in a "reversed" state—recognize it and consciously flip the switch. You're not a victim of your psychology; you're the chooser. Michael Douglas is the master of the reversal theory in David Fincher’s The Game (video).

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