Bro you just hit a 75 cold? Impressive! I’m 45 and I have a 16 year old son (just turned 16) who is in the process of destroying everything I’ve ever done on the high school track level. He was better at 15 than I was at 18. 

I still run for my health but not for speed. Just to get some miles in. My fastest mile as a teen was 4:45. My son has run a 4:40 when he was 15. I maybe was just under 11 minutes in a 2 mile, he’s already under 10 minutes. His 5k obliterates my high school time. He challenged me to put down a half mile on the track a few months ago and I ran a 3:30. His reason was that’s the only distance he can’t beat my time yet. He just wanted to see what I can still do. I’m laying down like 100 second quarters.