Study used two-millisecond flashes to reduce the effects of jet lag by two hours.
Disease that causes the skull to grow abnormally is caused by mutations in the testicles of the father.
Athletes could be on alert as the Zika virus hits Brazil, where the Olympic games are due to be held this summer.
The annual charge of £200 will apply to antipodeans who are in Britain for more than six months.
Henry's head trauma could have triggered rages, memory loss and impotence, say Yale researchers.
Organs once considered too degraded for transplant can now be used, giving hope to thousands.
Health secretary Jeremy Hunt said the prime minister had not ruled it out.
Cancer has caused 30% of all deaths in Ireland compared to 26% across the EU.
Genetic mutation means people break out in skin rashes as a result of vibrations.
What good do mosquitoes do? Not a great deal - but it we wiped them out something worse might emerge
The protein which protected Vikings from worms is the same protein which causes respiratory illnesses today.
1,000 ants have been removed from the girl's ear, but doctors can't keep up with their breeding rate.
Brazil's health institute announces first time active Zika virus has been found in saliva and urine.
Being Tasered can cause short-term cognitive decline and functioning similar to dementia.
Smoking bans show 'improved health outcomes' and cuts in heart attacks, strokes and asthma.