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It’s very appealing to think that a noninvasive test could pick up the earliest signs of cancers or cardiovascular disease. Despite passionate testimonials of how whole-body CT scanning “saved my life,” we don’t know what the tumors found really would have done. We don’t know that these patients’ lives were improved, much less saved. In […]
- Health & Medicine
To Your Health?
Doctors are divided on whether the value of screening the torso with X-rays to find symptomless disease outweighs the costs.
- Chemistry
Germ-killing plastic wrap
Scientists have developed biodegradable plastics that release natural germ-killing agents onto the foods wrapped inside.
- Chemistry
Toxic runoff from plastic mulch
Pesticide runoff from tomato fields covered with sheets of plastic can kill fish, clams, and other aquatic life.
