Evil-doers everywhere: Get a whi...( The food you eat the drugs you take ...),Health

The food you eat, the drugs you take, your state of mind, and your gender -- all these make your sweat unique. Tel Aviv University chemists may turn this fact into a new crime-fighting tool that would make Sherlock Holmes blink in amazement.

Dr. Michael Gozin of Tel Aviv University's School of Chemistry is trying to revolutionize the field of "sweat science" by embarking on new research that criminals and terrorists will find downright repugnant. He and his team are looking at the biochemical components of human sweat as a new kind of ID, suspecting that each person has his or her very own chemical fingerprint.

"Dogs and other animals can differentiate between people easily, defining each person by his or her smell. Some animals can track us wherever we go," says Dr. Gozin, whose lab is preparing to work on this project with the U.S. Air Force. "All people sweat, so we thought: Why not try and track it?" Now working on isolating various biochemical components of sweat, Dr. Gozin hopes to present the first paper of the findings in this unique field of research later this year.

If the scientists' thesis proves true, sweat could be used to track terrorists and criminals when fingerprints are partially damaged or do not exist. Collected from a T-shirt, sock, or even a hand sliding across a table, sweat can hold a lot of secrets. And by analyzing the chemical composition of this sweat, notorious suspects evading investigators could be traced and found.

Sweat is a complex mixture of proteins and byproducts of our metabolism emitted from our pores. It also contains volatile compounds, only some of which our noses pick up. Dr. Gozin is investigating those compounds with heavy molecular weights, like proteins and peptides, which stick around long after a person and his smell have vanished.

"These heavier molecules will stay on the skin or the surface
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