top of page

Behavior Science

Medical Science

Artificial Intelligence

The  combination of medical and behavior science with artificial intelligence is the "sauce" that makes EW2Health solutions different and more effective.
The frequent interaction of our users with our non-confrontational approach generates information that  motivates them to take actions towards a better health.


  • Water is the most abundant and the most frequently recycled element in the human body.

    • Body fluids serve a variety of functions in the human body, including a key role in the digestion, absorption and transportation of other nutrients, formation and stability of cell structures, removal of waste products and toxins, as a solvent for biochemical reactions, thermoregulations of the human body, and lubrications. Also, because water is the main constituent of the cells, cellular water and fluxes of water between extracellular and intracellular compartments are the primary factors affecting cell volume, which in turn regulates a wide variety of cellular  functions, such as epithelial transport, metabolism excitation, hormone release, migration cell proliferation or even cell death.

  • The nutrients (glucose, fat, protein) consumed in oxidation processes combined with other elements that are also consumed in other processes like lipogenesis and gluconeogenesis correspond to less than 30% of the water consumption necessity.

  • Total body weight has a clear influence on the inputs and losses of water.

  • Therefore, if an individual weighs him/herself at 20-minute intervals during 18 hours we will find his/her weight oscillation.

Clinical Consequences

  • One number cannot represent an individual’s weight because the total body weight fluctuates during the day.

    • The average procedure to evaluate weight loss is to measure weight at day 1 and for example at day 30. The simple subtraction of the weight on visit 2 – that on visit 1 is the reference for doctors to understand if the individual is losing weight.

    • IF the first weight was one of the lowest of the daily weight oscillation and at the second visit this weight is one of the highest of the daily oscillation we generate the false impression that this individual is gaining weight.

    • This process can hide possible successful cases of weight loss: it’s hidden by the weight oscillation.

    • On the other hand, a person’s weight oscillation can also hide his/her silent weight gain.

  • People are frustrated with scales because of the unproductive way to track weight pound by pound.

    • Even though daily self-weighing is proven to be an effective way to lose weight, the weight fluctuation generates enough frustration to make people give up. For some people, stepping on the scale triggers lots of negative self-talk and uncomfortable emotions.


  • By combining science and technology we can offer a better way for people to track, understand and control their weight.

  • Science (human physiology) – Our algorithm “learns” the individual weight oscillation per week and defines a weight range for each of these weeks. Using three weeks of data our algorithm uses a combination of equations to project the user weight range two weeks in advance. In testing the solution with athletes, with user data from Weight Watchers (in Brazil) and with some friends, our projection is proving to be 90% accurate.

  • Technology – Our solution collects data (measures) from bathroom smart scales and from our public Wi-Fi scales that DO NOT SHOW NUMBERS, uses our algorithm to analyze the data in the “cloud “, and sends results and direct messages about healthy eating and exercises to a mobile APP.

  • Science (behavior) – We show weight not as a number, but as a trend. We developed a “Change-o-meter” that reveals a user’s weight loss or weight gain pace. This method avoids the frustration with natural weight oscillation “spikes” and it intents to guide our user to a healthy weight loss pace. The “weight loss speed” is calculate individually and is based on evidence-based science papers.

“People seem to avoid to track their goal progress when they feel that the information about their progress is not accurate or useful.”
Why do people act like the proverbial Ostrich? - Chang, Webb & Benn - Frontiers in Psychology, 08 Feb. 2017
Discover more scientific topics like this.
Download our scientific reference.
Just click on the PDF icon.

Please, fell free to discuss our references and collaborate with our research. Please, send us an email
bottom of page