High-intensity training can pose several risks for beginners, including injuries, excessive fatigue, and decreased motivation. Newcomers may struggle with proper techniques or overexert themselves, increasing the likelihood of strain or injury. Without a solid fitness foundation, the body may not handle the stress appropriately, leading to burnout. It is crucial for beginners to gradually increase intensity, focusing on building strength and endurance in a safe manner. Seeking guidance from fitness professionals can help mitigate these risks effectively.