Amazon is raising free-shipping minimums for some customers who don’t have Prime memberships

US Has Accused Russia of Firing an Anti-Satellite Weapon in Space

Weight Loss Stats Don't Tell The Full Story. Experts Explain Why That MattersScientists Reveal How Much Exercise You Need to 'Offset' a Day of Sitting

Pumping Beats Threaten The Hearing of Nearly Half of All Teens And Young AdultsSmoking Cannabis Could Harm Your Lungs More Than Tobacco, Study FindsScientists Record a Virus 'Prowling' Cells in Search of a Way Inside

Sperm Counts Are Dropping Across The World, And The Decline Is AcceleratingBrain Zaps Helped These Two Patients Get on Top of Their Binge Eating

Scientists Discover X Chromosomes Being 'Silenced' in Male Cancer Cells

The Most Common Pain Relief Drug in The World Induces Risky Behavior, Study ShowsScientists Have Developed a Chemical That Extracts Uranium From Irradiated Mice

Recent Unusual Measles Cases in Australia Show Why That Second Shot Is So ImportantAlmost 90% of Flying Insects Tested in Hospitals Carry Potentially Harmful Bacteria

'Female Viagra' Was Just Approved by The FDA Despite "Skimpy Peer-Reviewed Data"There's Bacteria Living on Your Eyeball, And It Could Be More Important Than We Think