How do you know when to stop working out?

Question

I follow isometrics and try to push myself to do 5 more of the exercise when i "think" i cant continue.

Answer 1

um well id f you are getting woosy or not feeling good that's when or maybe just doing twice or three times a week

Answer 2

When you workout too much bad things can happen

1. Your muscles are overworked ,pull , tear etc

2. They burn too much calories so you overeat get fat blah!

3.  They dont have time to rest and...ok Im boreddd!!!!!  

Answer 3

Its hard to explain, my body just kinda stops.  

I usually rest 2 minutes in between sets.  If I do my 2 minute rest period and cannot complete the amount of reps I want to do, I know that I've had enough and its time to quit.  

Answer 4

Forced reps are not a good idea, Ever. Ever. Stop when your body says stop.