Both strength training and high-intensity interval training (HIIT) offer unique benefits. Strength training builds muscle, improves bone density, and boosts metabolism. HIIT enhances cardiovascular health, burns calories, and improves endurance. The best option depends on your fitness goals and preferences. Combining both can provide a well-rounded fitness regimen, maximizing overall health and performance. It's essential to consult with a fitness professional to tailor a program to your needs.