http://vitals.lifehacker.com/the-difference-between-high-intensity-interval-training-1790763475
Most recent stories in Guy Stuff
http://www.mensfitness.com/training/workout-routines/every-exercise-ufc-workout-program
http://www.telegraph.co.uk/men/health/fit-for-40-will-having-a-personal-trainer-for-a-week-mend-my-bod/
See more stories
Guy Stuff
Magazine