The 7 best apps to make you healthier

Invisible habits run your life.

Whether the first things you do when you get up in the morning are run and make yourself scrambled eggs or snooze the alarm and eat sugary cereal, those are habits. (Ditto healthy snacking, sleeping regularly, and remembering to call your mom once in a while.) And because habits by their nature tend toward inertia, changing them or developing new ones are hard.

Fortunately, many of us carry finely-tuned habit-forming devices in our pockets all day: our smartphones. The best habit apps either prompt you to do something - helping you form a new habit - or help you modify and improve your existing ones.

Here are the best apps for healthy habits.