8 health habits you should track

One of the best ways to embrace and establish a healthy lifestyle is to track your habits. When you keep tabs on your starting point and your subsequent steps, you can get a better sense of where habit change is working—or where you need to make adjustments.

Change takes time, and you usually don't see results overnight. But with a health tracker, you can see the benefits of taking brisk walks after dinner or resisting Friday happy hour. The more you see how well you're doing, the more likely you'll stick with it—which can make you healthier and lower your RealAge.

The best news: Tracking doesn't have to be hard, time-consuming, or expensive. Here are eight things you should consider tracking, plus easy ways to do it.