I've run seven 5K races this year...and I'm still alive! Last year, I reflected on my parents and sister running--and my effort at joining them in a practice, that "running/walking a 5K without any training is a nice, slow, painful way to die." But I've been training!
My whole family--parents, two sisters, and brother--runs. We train together, and often run 5Ks together. My mom and sister are perhaps the most serious runners. They do half marathons. And you'll never guess what my sister did to celebrate her birthday...she ran 15 miles!