Swedish researchers have discovered the obvious about the human immune system: When a person “catches” a common cold and recovers, he or she develops lasting natural immunity to coronaviruses. The common cold is a type of coronavirus, in case you were unaware. And if you have ever had a cold, especially as a child, then your immune system already knows how to fight off coronaviruses, including... 

Scientists identify infrared vision in human eye. A new study has identified a super power of human eye to see invisible infrared light. Scientists found that under certain conditions the eye’s retina would be able to react differently and consequently sense infra-red light which is beyond what traditionally considered as visible spectrum. The super power of the eye appears when pairs of photons...