Lajuana Weathers is determined to be the healthiest version of herself. She starts each day with a celery juice, is always trying to increase her step count, and meditates daily. Weathers is also 89 years old. And she has no plans to slow down. “I wake up in the morning and feel blessed that I have another chance at a day of life,” says the grandmother of six, and great?grandmother of six more, who lives in Illinois in an independent living facility for seniors. “I look at my life as a holistic entity, and in that life is my physical,...