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Radiation hormesis is the conjecture that a low level of ionizing radiation (i.e., near the level of Earth's natural background radiation) helps "immunize" cells against DNA damage from other causes (such as free radicals or larger doses of ionizing radiation), and decreases the risk of cancer. The theory proposes that such low levels activate ...
The effective dose is the risk of radiation averaged over the entire body. [4] Ionizing radiation is known to cause cancer in humans. [4] We know this from the Life Span Study, which followed survivors of the atomic bombing in Japan during World War 2. [5] [4] Over 100,000 individuals were followed for 50 years.
Acute radiation syndrome (ARS), also known as radiation sickness or radiation poisoning, is a collection of health effects that are caused by being exposed to high amounts of ionizing radiation in a short period of time. [1] Symptoms can start within an hour of exposure, and can last for several months.
Cancer is typically treated with surgery, radiation and sometimes chemotherapy. But a new study suggests this standard protocol might not be necessary for a common form of early-stage breast cancer.
Some early breast cancer patients can safely avoid specific surgeries, according to two studies exploring ways to lessen treatment burdens. One new study, published in the New England Journal of ...
Studies have been performed on the use of shortwave radiation for cancer therapy and promoting wound healing, with some success. However, at a sufficiently high energy level, shortwave energy can be harmful to human health, potentially causing damage to biological tissues, for example by overheating or inducing electrical currents. [ 28 ]
Breast cancer is not a single disease but multiple ones, each carrying varying degrees of risk for endangering women’s health. In recent years, many researchers have been focused on DCIS: ductal ...
The finding is based on following more than 950 U.S. patients randomly assigned to surgery or active monitoring. All had low-risk DCIS with no sign of invasive cancer. They had the type of DCIS that responds to hormone-blocking drugs and many in the study took those drugs as part of their treatment.