The mobile health (mHealth) market is growing and getting a lot of attention. And there are a lot of reasons for this. It's a large market and there is a lot of demand. More than ever, individuals are thirsty for medical knowledge. There are about 97,000 apps related to health and fitness and over 300,000 downloads paid on a daily basis*. There's a lot at stake and the number of potential applications is huge. Five years from now, the mHealth market is expected to reach over 3.4 billion smartphones and tablets. By 2017, this market is expected to reach revenues in the order of $26 billion US*.
This, in turn, helps to indicate to users the proper time to hydrate during physical exercise. According to the researchers this will also help to avoid the risk of developing muscle cramps during a training session.
A team of researchers from Cornell University is busy developing a smartphone that will detect pH (the scale used to measure the acidity of a substance) in saliva and sweat. Salivary pH is correlated to enamel decalcification or the acidic breakdown of calcium in the teeth. Similarly, sweat pH is correlated to the amount or concentration of sodium as well as sweat rate.