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The Right Side of 40

Deborah Heiser, Bruce Y. Lee

A research-backed guide to turning life after 40 into clarity, relevance, mentorship, and lasting impact.

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Substack
PricingFreemiumPublishesDaily
Issues156Founded4 years agoLast Issue23 hours ago
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Latest Issues

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23 hours ago

The Hidden Psychology of Impact

This was my personal journey…

I was in my early 30s, updating my CV.

Another conference presentation. Another line added under “Publications and Presentations.”

I should have felt proud, but instead I felt empty.

I remember asking mysel...

8 days ago
14

A quick note about supporting this work

I want to take a moment to name something explicitly.

As The Right Side of 40 has grown, I’ve started building out a few spaces and resources for readers who want to go deeper — not just read, but engage more fully with the ideas here.

20 days ago
4
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An 82-Year-Old Told Me to Stop Lying to People About Getting Older

Two aging experts disagree, and both are right.

A first-person reckoning between optimism and honesty.The Right Side of 40 is a reader-supported publication. To receive new posts and support my work, consider becoming a free or paid subscr...

23 days ago
13
1
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Reclaiming Identity After the Kids Leave

The complexity of the empty-nest phase.

Key points

a month ago
6
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Authors

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  • Deborah Heiser

    Welcome, I am an Applied Developmental Psychologist specializing in aging, mentorship, and generativity. I'm the bestselling author of The Mentorship Edge, a TEDx speaker, Psychology Today contributor and founder of MentalMapping and My Legacy Tree.

  • Bruce Y. Lee

    I am a writer, journalist, professor, AI/computational/digital health expert, physician, entrepreneur, science humorist, and avocado eater, not always in that order. Follow me for all things health/science, but don’t ask me if I know martial arts.

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