i have not exercised for a whole year. i have not had such a break since probably i was 10yo. so i went to the gym this monday and was careful to avoid the week long muscle soreness that usually comes with first exercises. i pulled both of my hamstrings and groin during squats but lo and behold, the next day i was totally fine. usually soreness comes after 48h though. so i waited and..nothing. went to the gym again and today, day after, i am still fine. i cannot believe it. health beats age.