Sonya Yaksich, 66, is in the best shape of her life—and she has the data to back it up. Yaksich owns a smart scale, which is an advanced bathroom scale that measures not only body weight, but also ...

"Exercise wasn't something I pursued until later in life," Yaksich reveals. She says that she was overweight as a young child and spent her teens and early adulthood yo-yo dieting. "Then, life just ...