Dr. Abreu is a medical doctor, former faculty at Yale University School of Medicine and Harvard Medical School, who engineered and patented BTT technologies. Dr. Abreu, an expert in brain thermodynamics and thermoregulatory frequencies, was the first to delineate the radiation signature of the glucose molecule (resulting in U.S. Patent # 7403805), and he also discovered the brain temperature tunnel while at Yale University, which allowed for the first noninvasive measurement of brain temperature through a thermophysical pathway. This discovery led to his invention of the computer based, FDA-cleared Abreu BTT 700 system.In his private practice, Dr. Abreu has treated patients with neurodegeneration including Alzheimer's disease, Parkinson’s disease, ataxia, Huntington's disease, motor neuron diseases (ALS), and multiple system atrophy, as well as multiple sclerosis, epilepsy, and other neurologic diseases and cancer based on modulation of brain thermodynamics, thermoregulatory frequencies.