Washington: Scientists at the Univesity of Washington are working on an anti-ageing drug using a compound said to stimulate human growth hormone (Hgh) to give people more energy and cut their body fat.

Scientists at the University of Washington said the experimental growth hormone secretagogue forced the body to secrete growth hormone as it did in youth.

Almost 400 men and women aged 65-84 have taken part in a study in which they were given different amounts of the hormone. Their body lean muscle mass and strength were then measured. Lean body mass of about 1.5kg increased and physical function improved over the year.

Head researcher and professor of medicine George Merriam said the hormone was vital in childhood and its production peaked during puberty but declined with age. Hgh is only prescribable for children with a deficiency and adults with an abnormal defiency.

A secretagogue, such as that being reserached by the scientists, stimulates the body
into producing its own Hgh.