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It's not a well-kept secret that the top echelon of bodybuilders uses steroids to enhance their training and physiques.

The Centre for Substance Abuse Research (CESAR) believes that the use of anabolic steroids can be traced back as far as the 1930s, when scientists were able to create a synthetic form of testosterone.

Eugene Sandow is known as the father of bodybuilding, who travelled through Europe performing his "muscle display performances" alongside feats of strength.

His secret? Sandow reputedly stuck to a steadfast routine that involved starting the day with a cold bath, eating bland foods with "proper mastication" and exercising with dumbbells as light as 20lb (8kg).

Image: www.musclemunch.net