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Human scent could one day be used as evidence in forensics and as diagnostic information in medicine.

All from the touch of a hand. Here's how the scent emitted from your hands could offer clues about who you are.

Your scent is a complex product influenced by many factors, including your genetics. Researchers believe that a particular group of genes, the major histocompatibility complex, play a large role in scent production. These genes are involved in the body’s immune response and are believed to influence body odor by encoding the production of specific proteins and chemicals. ​

The scent emitted from your hands could offer clues about who you are. Siro Rodenas Cortes/Moment via Getty ImagesFrom the aroma of fresh-cut grass to the smell of a loved one, you encounter scents in every part of your life. Not only are you constantly surrounded by odor, you’re also producing it. And it is so distinctive that it can be used to tell you apart from everyone around you. Your scent is a complex product influenced by many factors, including your genetics. Researchers believe...