Scientists have pioneered a new way to monitor sodium levels in the blood—without drawing a single drop. By combining terahertz radiation and optoacoustic detection, they created a non-invasive system ...

One reason is for camouflage; a giraffe's spots help it blend into its surroundings. The irregular markings break up the ...

Rely on these simple DIY ideas to beat the summer heat and rest easy indoors. These cooling tips will help keep you ...