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Story summary
- Joseph Briseño, a supervisor at a Houston waste disposal company, donates plasma four days a week to supplement his $50,000 salary as living costs rise.
- Research shows plasma donation, once tied to low-income individuals, is increasingly attracting middle-class donors.
- New plasma centers are opening in middle-class neighborhoods, signaling a shift in clientele.
- The trend highlights financial pressures on the American middle class as they seek extra income.
