We have some great SparkTeams dedicated to a variety of challenges! Here are a few popular ones:
Challenges can motivate you to reach new goals, develop healthy habits and have fun along the way! SparkPeople offers several "official" challenges that give you a specific plan to follow and all the information you need to reach a new goal or make a new personal breakthrough.
Consider joining SparkPeople's Largest Virtual Weigh-In Challenge. Whether your goal is to lose, gain or maintain your weight, this team is for you!