The “U-Curve of Happiness” theory suggests that life satisfaction follows a u-curve when plotted between the ages of 20 and 70 with happiness peaking at 23 and 69. The most unhappy time of your life is your 40s and 50s, trending backup as you grow older.

Let me tell you, if I’d come across this information before finding my way in this retirement transition, I would have either fallen down laughing or weeping uncontrollably. 

You might find it difficult to imagine being happier now than before you left work. And, yes, there are a zillion variables in this that can impact levels of happiness - health, wealth, family situation, etc. But, generally speaking, “all things being equal”, it is shown that there is a U-Curve to life satisfaction.

3-key points about the theory that might relate to your experience:

1. The U-Curve is a common experience: The U-Curve of Happiness theory is based on extensive research and has been found to be a common experience across cultures and demographics. If you're feeling down or unfulfilled in your retirement, know that you're not alone. Many women experience a dip in happiness levels in midlife. And let’s face it - 60’s and 70s, while not mathematically mid-LIFE, it is mid-adulthood.
   Think about this dip, not at 50, but at 60 being due to the successful working professional YOU, who is now facing a major transition to a new chapter in your life.  That makes sense, right?
   
2. Dips in satisfaction or happiness are often caused by major life transitions such as retirement,  but also children leaving home, caring for aging parents, or the loss of a partner.
   Any of these transitions can be challenging and can lead to feelings of uncertainty, loss of identity, and decreased social connections. Retirement can be the most isolating transition because you’re not expecting it to be difficult and it also comes with a lot of cultural, psychological, and emotional STUFF.
   If you're struggling with the emotional and psychological challenges of retirement, know that this is a common experience.
3. Happiness levels increase with age: The good news is this U Curve theory shows happiness levels increase again as we get older. I know I’m following this curve up - but it didn’t just happen. I had to contribute. Gaining an understanding of WTF was happening, practicing better coping skills, becoming more self-aware - living more in the present moment, appreciating life's small moments.

If you're a retired woman who's feeling discouraged or unfulfilled, know that there is hope! Your happiness and fulfillment levels CAN increase as you age.