5 fitness trends that went viral in 2025 — experts weigh hype vs results Discover 2025's hottest fitness trends, from TikTok's viral 12-3-30 workout to weighted vest training and more. Experts weigh in on whether they live up to the hype. Original Source: https://www.foxnews.com/health/5-fitness-trends-went-viral-2025-experts-weigh-hype-vs-results
