This is an installment of Good Fit, a column about exercise. I took my first CrossFit Kids class when I was 10 years old, the summer between fifth and sixth grade. I remember a circuit that involved ...

Add Yahoo as a preferred source to see more of our stories on Google. Warming up before exercise helps kids stay healthy and perform better. Learn about the best warm-ups for kids to do before active ...

"Aren't they a little young for that?" This is a question I used to hear regularly from parents when I'd recommend strength training for the kids I worked with, whose ages ranged from 6 to 18 years ...

Research in child development has consistently shown that unstructured play and self-directed activities support healthy ...