Let's make this birthday one to remember.

70 years old (Born on July 20, 1954)

Happy Birthday, Dr. Jeffrey M. Friedman! May your celebrations be as groundbreaking and energizing as the discovery of leptin itself—though hopefully with fewer lab coats involved and more cake (calorie-free in spirit, thanks to your research!). Your brilliant insights into how our bodies signal fullness have forever changed the way we understand obesity; you've truly given new meaning to "food for thought."

Here's wishing you another year filled with exciting discoveries, joyful moments outside the lab—and perhaps a Nobel-worthy breakthrough or two along the way! Keep inspiring us all by proving that science can indeed lighten things up.