1. Weight loss challenges
2. Fitness challenges, such as running or cycling challenges
3. Clean eating challenges
4. Yoga challenges
5. Meditation challenges
6. Strength training challenges
7. HIIT (high-intensity interval training) challenges
8. 30-day challenges for specific fitness goals (e.g. pushups or squats)
9. Sleep challenges to improve sleep habits
10. Wellness challenges, such as mindfulness challenges or gratitude challenges.
