Do you get grittier as you age? What's worse for mental health: video games or social media? And do baby boomers make the best D.J.s? 

RESOURCES:

• Generations: The Real Differences Between Gen Z, Millennials, Gen X, Boomers, and Silents — and What They Mean for America's Future, by Jean Twenge (2023).
• "5 Things to Keep in Mind When You Hear About Gen Z, Millennials, Boomers and Other Generations," by Michael Dimock (Pew Research Center, 2023).
• "Lock Screens," by Jean Twenge (Character Lab, 2023).
• "The Blurred Lines Between Goldman C.E.O.’s Day Job and His D.J. Gig," by Emily Flitter and Katherine Rosman (The New York Times, 2023).
• From Strength to Strength: Finding Success, Happiness, and Deep Purpose in the Second Half of Life, by Arthur Brooks (2022).
• "The Great Resistance: Getting Employees Back to the Office," by Nicholas Bloom (Stanford Institute for Economic Policy Research, 2022).
• "Generations and Generational Differences: Debunking Myths in Organizational Science and Practice and Paving New Paths Forward," by Cort W. Rudolph, Rachel S. Rauvola, David P. Costanza, and Hannes Zacher (Journal of Business and Psychology, 2021).
• "Patterns of Cumulative Continuity and Maturity in Personality and Well-Being: Evidence From a Large Longitudinal Sample of Adults," by Frank D. Mann, Colin G. DeYoung, and Robert F. Krueger (Personality and Individual Differences, 2021).
• "Global Prevalence of Gaming Disorder: A Systematic Review and Meta-Analysis," by Matthew W.R. Stevens, Diana Dorstyn, Paul H Delfabbro, and Daniel L King (Australian & New Zealand Journal of Psychiatry, 2020).
• "A Majority of Young Adults in the U.S. Live With Their Parents for the First Time Since the Great Depression," by Richard Fry, Jeffrey S. Passel, and D'Vera Cohn (Pew Research Center, 2020).
• "Managing the Strategy Development Process: Deliberate vs. Emergent Strategy," by Clayton Christensen (Harvard Business Review Case Study, 2019).
• "Distinguishing Aging, Period and Cohort Effects in Longitudinal Studies of Elderly Populations," by Robert D. Blanchard, James B. Bunker, and Martin Wachs (Socio-Economic Planning Sciences, 1977).
• "Gaming Disorder," by the World Health Organization.

EXTRAS:

• "Why Can’t Baby Boomers and Millennials Just Get Along?" by No Stupid Questions (2021).

SOURCES:

• Arthur Brooks, professor of the practice of public and nonprofit leadership and professor of management practice at Harvard University.
• David Costanza, professor of psychology and organizational sciences at The George Washington University.
• Clayton Christensen, professor of business administration at Harvard Business School.
• David Solomon, chairman and C.E.O. of Goldman Sachs (and D.J.).
• Jean Twenge, professor of psychology at San Diego State University.