I've been running a couple of years, nothing too heavy, just a couple of runs a week usually around 5k or less, but have done the odd 10k.
I'm 31 so I know my max heart rate is calculated as around 189, and according to my watch this is my average heart rate when I run. However I didn't realise until now that this is not good!
I run a comfortable 5k in around 33/34 minutes, I've done some runs a bit quicker, but I'm not exactly exerting myself.
Any advice, as I now believe my heart rate should only be around 75-80% of my max HR! This has shocked me this afternoon, I just thought it was normal to run at max HR