40s going on 18 as well. Haven't had to use Viagra yet, but willing to bet the S1000RR makes you feel younger. Been riding for 30 years and saw track time on 2 wheels in my 20s and 30s.
46 been riding since ive been 10 ,gave up dirt 4 yrs ago. I went down 3 times in the same day and sold the bike the next week . I hurt for over a month after that day.