# Prof. Adam Alter's research on milestone birthdays

1 November 29, 2014 The Guardian ![Guardian logo ](/sites/default/files/styles/246w/public/assets/images/con_030939.jpg?itok=g7FgVwid)>

Excerpt from [The Guardian](http://www.theguardian.com/lifeandstyle/2014/nov/29/countdown-to-big-birthdays) -- "And for the first time, thanks to new research by [Alter](http://www.stern.nyu.edu/faculty/bio/adam-alter) and Hal Hershfield, an expert on the psychology of time at the University of California’s Anderson School of Management, we have a glimpse of just how profoundly we’re affected when we sense these milestones approaching and experience a 'crisis of meaning'."

[Read more](http://www.theguardian.com/lifeandstyle/2014/nov/29/countdown-to-big-birthdays)

Additional coverage appeared on [Lifescript](http://www.lifescript.com/well-being/articles/h/how_to_survive_your_big_birthday.aspx). ## More Research by Adam Alter

- [Professor Jonathan Haidt shares his views on viewpoint diversity on college campuses ](https://www.stern.nyu.edu/experience-stern/faculty-research/professor-jonathan-haidt-viewpoint-diversity-on-college-campuses)
- [Professor Thomas Philippon and PhD student Germán Gutiérrez's joint research on corporate investment and growth in the US is referenced](https://www.stern.nyu.edu/experience-stern/faculty-research/professor-thomas-philippon-and-german-gutierrez-joint-research-referenced-financial-times)
- [Professor Adam Alter's joint research on categorizing experiences is featured](https://www.stern.nyu.edu/experience-stern/faculty-research/professor-adam-alter-s-joint-research-categorizing-experiences-featured)
- [Professor Lisa Leslie's joint research on flexible work arrangements is referenced](https://www.stern.nyu.edu/experience-stern/faculty-research/professor-lisa-leslie-s-joint-research-flexible-work-arrangements-referenced)
- [Professor Stijn Van Nieuwerburgh's research on the impact of out-of-town real estate buyers on cities is spotlighted](https://www.stern.nyu.edu/experience-stern/faculty-research/professor-stijn-van-nieuwerburgh-s-research-impact-out-town-real-estate-buyers-cities-spotlighted)