As a medical doctor trained in internal medicine, psychiatry, and neurology Dr Nader practiced medicine privately and at the Massachusetts General Hospital, the Harvard Medical School, where he was a clinical and research fellow in neurology. He was also a visiting physician and assistant director at the clinical research centre at MIT.

When he arrived at MIT and Harvard, Dr Nader found himself among Nobel Laureates and scientists who had made some of the greatest pioneering discoveries in physiology and medicine, authorities whose work is taught in all medical schools. It is with those great doctors and scientists that he gained a solid understanding of the human physiology, particularly the nervous system. This prepared him to later do research showing how the brain relates to the mind and consciousness and vice versa.

Not long after Dr Nader’s arrival at MIT, Maharishi began talking to him about opening an Ayurvedic Clinic in the US. Maharishi’s goal was always to promote the best of what is available to develop full human potential and create a peaceful, disease-free society. Once deep transcending through the practice of TM was established for sufficient people worldwide, Maharishi started to introduce other aspects of Vedic knowledge. Ayurvedic Medicine, or more specifically Maharishi AyurVeda, highlights the central importance of the mind–body relationship for health and attunes individual life with the cycles of nature — seasons, times of day and night. Today this is partially described in modern chronobiology.

Under Maharishi’s guidance a clinic was opened in Lancaster, Massachusetts. Dr Nader also began pioneering research on Ayurvedic Rasayanas (natural herbal preparations). Conducting chemical tests on these herbal compounds, he found that they were powerful anti-oxidants, a concept that was just becoming known in the West and led to further research in research institutes around the world. Dr Nader became the International President of Maharishi Ayurveda Universities and trained over 2000 doctors in Ayurveda and thousands in an Ayurvedic modality called Self Pulse. At the time, Dr Nader’s focus was understanding the twenty approaches of Maharishi AyurVeda — which include TM and its advanced techniques, and health and rejuvenation procedures. He conducted research in neurochemistry and neuroendocrinology; the relationship between diet, age, behaviour, mood, seasonal influences, and hormonal activity; and the role of neurotransmitter precursors in medicine.

Dr Nader was also introduced by Maharishi to other areas of Vedic knowledge. The science of consciousness developed by Maharishi integrates modern research with the broad-based areas of knowledge stemming from the ancient Vedic tradition. This integration is known as Maharishi Vedic Science. Maharishi guided Dr Nader’s training under the most renowned Vedic scholars — Dr Nader’s scholarship in this area deepens our understanding of the scientific significance of Veda, the timeless wisdom of the science of consciousness. In his five books, Dr Nader has shown an exact correspondence between each aspect of Vedic literature and human physiology, anatomy, cell biology, and DNA.