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Scientists have demonstrated the effectiveness of a new tinnitus treatment. Tinnitus is the perception of a noxious disabling internal sound without an external source. Roughly fifteen percent of the population suffers from this disorder in varying degrees along with the associated concentration problems, sleep disturbances, anxiety, depression and extreme fatigue.

Once you pop the top of a tube of potato chips, it can be hard to stop munching its contents. But researchers may have found a novel way to help: Add edible serving size markers that act as subconscious stop signs.

Bioengineers have developed the first structure to grow small human blood vessels, creating a 3-D test bed that offers a better way to study disease, test drugs and perhaps someday grow human tissues for transplant.