After following them faithfully for years he had become, in all respects, a young man at 70. This was attested by medical examinations. His face had become smooth without a single wrinkle. His theory was that the body gets old through the accumulation of mineral deposits in the tissues, which finally become stiff and inelastic.

The object of his exercises was to contract and then relax all the muscles and tissues to squeeze the mineral deposits out to be carried off in the blood stream.

In 1912 he followed with another book called 'Old Age - Its Cause & Prevention'

If Bennett had not been killed by an accident when he was in his 80s he might have lived many more years.