I look forward to hearing about your interval training.

Here, in the hills, cycling alone, into the wind, I was happy to average 15 mph over 2 hours. (This pleased me because I just got my first real road bike 3 weeks ago, so all this is new to me). I'm faster alone than with my friends, who are more experienced than me, but also more mellow. (They're much faster than me on skate skis, so it all evens out.) I'm lucky to know a bunch of women, all older than me (I'm 48, they range from 49 into their 60s), who are all fit and active.