What is the remedy for cracking and popping knees?

Cracking and popping knees, often caused by gas bubbles in the joint fluid or ligament movement, can usually be addressed through strengthening exercises, stretching, and maintaining a healthy weight to reduce stress on the joints. Staying active with low-impact activities like swimming or cycling can also help. If the sounds are accompanied by pain or swelling, it's advisable to consult a healthcare professional for further evaluation and treatment options.