Strength training is fantastic because in addition to giving you lean, strong muscles, it also improves your bones, increases your metabolism, and benefits the health of your heart. Many gyms have free weights such as dumbbells, barbells, and kettlebells as well as various weight machines, so here's what to consider when choosing between free weights and machines.
The essential word when it comes to weight machines is "target," which means they are typically made to concentrate on one muscle or group of muscles, like just your quads or just your biceps. The benefit of using machines is that they are designed to specifically guide your range of motion, making it tougher to have poor form that might possibly result in injury.
Free weight training activates more muscles than weight machines; consider a squat, which engages the quadriceps, glutes, hamstrings, calves, and core. Free weights allows for more efficient training, and also end up improving your balance and coordination, since you're using stabilizing muscles along with the main muscles that you're targeting.
Whether you choose to use free weights or weight machines, keep in mind that you should gradually and carefully include weight training into your exercise regimen. Over-training is a real thing, and just because you're not actively working on a certain muscle group ‌doesn't imply no change is happening.