Car apps know if you’re hungry, sneezy

Within the next couple years, your car will notice if you have low blood sugar and tell you to have a snack; check local pollen counts and roll up your windows to prevent an allergy attack; and at lunch time, give you directions to the nearest healthy-eating establishment, pausing your iPod to broadcast the restaurant’s menu. Using a suite of new apps Ford announced Wednesday, personalized medicine could soon be as simple as revving your engines.