Tag : sensitivity

Most of us recall that as children we were told to eat carrots to improve our night vision. Now a scientific study has validated grandma’s advice.

It turns out that while carrots do help, sweet potatoes, tomatoes, spinach, kale and collard greens all do the same thing. A recent research group enrolled 120 healthy long distance truckers who are on the road an average of 10 hours a day. They took either 20 mg of lutein or placebo each day for one year. At the end of the year, their eyes were carefully examined. The macula, that part of the eye responsible for detailed vision, was found to have more pigment and greater sensitivity in those who took the lutein,

At Longevity Medical Clinic we often talk to our patients about detecting and preventing cancer. It’s something on the minds of most of us, since we all know that, when it comes to treating cancer, early detecting is critical. One of my patients recently asked me about they had read concerning an early detection test for cancer. Are these tests valid, or do they offer a false hope?

In fact, thanks to advances in early detection, there are now some promising tests for cancer. These tests look for what we call “markers” – early signs of cancer.  But the fact is that each cancer has its own specific set of markers, sometimes as many as 30 or 40 that doctors can actually measure. In many cases, in order to get an early detection test that is statistically valid, doctors need to combine 15 or 20 of these markers. You can see how complicated this can get.

Let’s consider one specific example – lung cancer. Almost 5 years ago, medical journals began