LeBron Challenges Nike, Signal Ring Launches, Samsung Buys PolyPeptide

July 21, 2026: Your daily rundown of health and wellness news, in under 5 minutes.

Today's top stories:

• Samsung Biologics acquires PolyPeptide Group for $1.8B, expanding into peptide manufacturing as GLP-1 demand makes production capacity the real bottleneck
• Vital Signals unveils Signal Ring, a cuffless smart ring measuring blood pressure continuously, with preorders at $399 ahead of an October launch
• LeBron James says Nike's path forward starts with reconnecting to the communities and young consumers that built the brand amid slowing growth

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