Wondering what the rules are for keeping your fast during Ramadan? Here's what to know about chewing gum, taking medicine and brushing teeth.

For over a billion Muslims worldwide, Ramadan is the holiest month of the Islamic calendar, a period dedicated to heightened devotion, gratitude, and discipline. It is observed with fasting from sunrise to sunset,

But with so many distractions flying around today, it has become pretty easy to lose track of time, and that's why you must know what you should and shouldn't do during this period. One of the best ways to make the best of this holy month is to keep a personal list of do's and don'ts.