Blue light beats pills
BLUE light could work as well as drugs to lower high blood pressure, doctors have found.
Just half an hour of blue light in a day reduces blood pressure to the same level seen in those taking tablets.
It is well known sunlight lowers blood pressure, with people less likely to have high blood pressure in summer.
But excessive amounts of ultraviolet light, from the sun or a tanning bed, can cause skin cancer. University of Surrey researchers found a solution using blue light, which is close to ultraviolet in the light spectrum.