Personal Health Institute international (PHIi) is engaged in research in the area of personal health and clinical diagnosis. The research aims at refinement and extension of knowledge and carrying it forward to develop tools and services.

PHIi is a partnership between experts in the area of hardware-, software- and sensor-technology, knowledge engineering; signal processing, physiology and behavior. PHIi covers the complete life cycle from measurement, via diagnosis to clinical decision making.

PHIi creatively combines its multidisciplinary expertise with field experience in sleep, biological rhythms and personal health to develop and deploy clinical solutions. PHIi is engaged in:

Cognitive therapy of insomnia over the internet The knowledge based system SOMNIO models the therapeutic and diagnostic expertise of a sleep therapist. read more

Diagnosis of sleep and attention disorders PHIi is developing solutions for physiological monitoring and diagnosis systems like Nebula cruiser, Galaxy. read more

Contract research for third parties PHIi supports the development of drugs and therapeutic devices for the clients. read more

Applied Research PHIi reinvests in research and collaborates in partially funded projects. One of the ongoing research programs, under EUCLOCK consortium, is for development of objective markers of the internal biological rhythm to optimize performance in the 24-hours economy. read more

The golden ratio , also known as phi, is an irrational number that possesses many interesting properties.

Shapes proportioned according to the golden ratio have long been considered aesthetically pleasing. PHI, approximately 1.618, is still used frequently in art and design, suggesting a natural balance between symmetry and asymmetry. The ancient Pythagoreans , who defined numbers as expressions of ratios, believed that reality is numerical and that the golden ratio expressed an underlying truth about existence.