9To5Mac has yet another scoop: details and images of the forthcoming Healthbook app that will be part of iOS 8. They say the information and images come from individuals working directly on the project. This confirms the rumors that Apple is taking a major step toward integrating mobile healthcare and fitness into its iOS line. The screenshots show that Healthbook will let you track blood work, heart rate, hydration, blood pressure, physical activity, nutrition, blood sugar, sleep, respiratory rate, oxygen saturation, and weight. According to 9To5Mac, the Fitness feature will be similar to other fitness-tracking apps that record information such as how far you've walked and how many calories you burned. The Weight feature will let you track body mass index and body fat percentage. The Nutrition feature lets you record the food you eat and helps you maintain a diet.
The Emergency Card feature will be a central place for you to store critical data about yourself so that it's conveniently available should there be an emergency.
Obviously, some of these measures will require separate input devices that attach to your iPhone. It's not clear whether Apple itself will sell those devices or if somehow the iWatch will play that role.
Of course, it's not known exactly what form the final app will take, and all of these features may not be present. But it's clear that versions of the app in development include them—and that Apple is definitely making a big push into this new market.
In other news, MacRumors has passed along the tidbit that the iPhone 6 may include a pressure, temperature, and humidity sensor, which can already be found on some other smartphones.