Scientists have developed a drug that mimics sunlight to make the skin tan, with no damaging UV radiation involved. The drug tricks the skin into producing the brown form of the pigment melanin in tests on skin samples and mice. Evidence suggests it will work even on redheads, who normally just burn in the sun.
Doctors have spotted cancer coming back up to a year before normal scans in an "exciting" discovery. The UK team was able to scour the blood for signs of cancer while it was just a tiny cluster of cells invisible to X-ray or CT scans. It should allow doctors to hit the tumour earlier and increase the chances of a cure.