<p>Dr. Hart runs a&nbsp;busy functional medicine clinic and is also&nbsp;medical director of Peptide Clinics, an online supplier of&nbsp;performance and image-enhancing medications.</p><p>Dr. Hart initially trained in Sports Science, and was awarded a&nbsp;University Medal for his Honors degree research in Exercise&nbsp;Physiology. After completing medical training, he completed&nbsp;a Masters in Sports Medicine. He commenced working in&nbsp;nutritional and environmental medicine 15 years ago, and&nbsp;now concentrates on health optimization using diet, exercise, sleep optimization, stress&nbsp;management, hormone balancing, gut repair and heavy metal detoxification.</p><p>A healthy brain enables you to be effective, thoughtful, creative, and energetic. A&nbsp;‘broken’ brain leads to depression, anxiety, decreased work performance, impulsivity,&nbsp;anger, inflexibility, poor memory function and relationship difficulties. We now know that&nbsp;we can improve the health of our existing brain cells so that they will work better and we&nbsp;will live longer.</p><p>The Brain Book by Dr. John Hart not only provides the medical background to effective&nbsp;brain performance but also offers an easy to follow, step by step guide to caring for your&nbsp;brain in an ever-changing world.</p>