When you ride in a new car, you will notice that the experience from inside the cabin is always quite pleasant. Over the years - and with rough driving - the suspension system can get worn out. This can cause discomfort. However, proper maintenance  (and the right parts) can help.
About every 80,467 km (50,000 miles) the suspension system needs to be inspected. This doesn’t just include the shock absorbers and struts. You should also have the tires, bearings, springs, and linkages checked as well. You can request this at an oil change.
Bushings are other elements that should be looked at. Made of rubber, they serve as cushions to soak up vibration. You will find them on the strut rods, sway bars, control rods, and track bars. You should also make sure that no oil contamination has occurred. This type of lubrication can cause failure.
The ball joints need to be inspected too, and the grease fittings need to be topped off. As for the struts and shock absorbers, these should be checked for oil leaks. Run by a hydraulic system, you can determine if an issue is present if the components are wet. Finally, you can perform a bounce test to see if everything is in good working order.