85 years old (Born on October 30, 1939)
Happy Birthday, Dr. Hartwell! Another year older, yet your cells seem to divide flawlessly—clearly you've mastered the art of aging gracefully. Your Nobel Prize-winning discovery of proteins controlling cell division has not only revolutionized biology but also given us all hope that someday we might understand why our own cells insist on celebrating birthdays so enthusiastically.Your leadership at the Fred Hutchinson Cancer Research Center continues to inspire countless scientists worldwide. May your birthday be filled with laughter, joy, and perhaps a microscope-shaped cake—because nothing says celebration like dessert inspired by groundbreaking cellular research! Here's to many more years of brilliant discoveries and timeless humor.