Listen in as Dr. Mike provides the answers to a wealth of health and wellness questions. Here you'll find the answers to a wealth of health and wellness questions posed by Healthy Talk fans. Listen in because what you know helps ensure healthy choices you can live with. Today on Healthy Talk, you wanted to know:I'm considering having prolotherapy on my knee and I'm wondering if it works. Can you shed some light on this?Prolotherapy, also known as proliferation therapy or regenerative injection therapy, is a nonsurgical therapy that helps heal an injury by stimulating your own body's healing mechanisms.A sugar solution is injected to the area where you're experiencing pain. This causes blood flow, immune cells, and water to move towards the injected site (in this case, your knee) to start the healing process and decrease pain.Dr. Mike strongly believes in this therapy and suggests to giving it a try.Is the calcium score test to measure heart disease valid?Yes, it is. This test is used to help determine your real risk for heart disease. If you're someone who has low risk -- which means you don't have a family history and your blood work came back fine -- you may not need this test. If you're high risk, meaning you have several factors that are contributing to poor heart health, or you might have already had a heart attack, this test isn't for you, as other treatments should be discussed.However, if you're someone who's considered medium risk (a few factors that could be contributing to heart hearth), a calcium score test can be extremely beneficial.The test will put you in a range from 0-400; the higher the score, the greater the risk for heart disease. If you get the calcium score test done and you score above 100, that's considered abnormal. But, if you score between 100-400, there is an increased likelihood of a heart attack within the next couple of years.If you're in the medium risk range and your calcium score test came back high, you might want to consider talking to your doctor about chelation therapy.Is bike riding bad for men?No. There is a very small risk for prostate cancer or sexual dysfunction. Some bike saddles and riding position can put pressure on nerves, so finding a comfortable position, avoiding long rides, and standing up on your bike can help relieve that pressure.If you have a health question or concern, Dr. Mike encourages you to write him at askdrmikesmith@radiomd.com or call in, toll-free, to the LIVE radio show (1.877.711.5211) so he can provide you with support and helpful advice.