James Jackson

James Jackson is a personal trainer who uses his expertise in strength and conditioning to create helpful workout tutorials that show fitness enthusiasts how to build muscle while staying safe in the gym. He draws on the latest sports science data as well as tried and tested training techniques to get the best results for his clients without them having to live in the gym.

Here’s how wide 46 inch shoulders really are for a man.

Find out how wide your 47 inch shoulders are and learn how you can make them broader.

Learn how broad your 48 inch shoulders really are (and discover how you can make them even wider).

Is it good to have 49 inch shoulders?

Learn how broad 50 inch shoulders are for a man who lifts.

Discover how wide 51 inch shoulders are for an adult man.

Find out what it takes to sculpt 52 inch shoulders naturally.

Learn if it’s possible for a natural lifter to get 55 inch shoulders, 56 inch shoulders, or even 57 inch shoulders.

Find out if you have the genetics to sculpt 60 inch shoulders.

Learn how to measure your chest circumference and chest width, and discover the average male chest size.