Humans Can Really Only Maintain Five Close Friends, According to This Equation

Bogus Paper Claims HPV Vaccine Causes Infertility, Scientists Shred It to PiecesYou Could Be "Smoking" a Pack of Cigarettes a Day Just by Breathing in City Air

Scientists Just Discovered a Previously Unknown Pain-Detecting Organ in MammalsHere's What Happens to Your Body And Brain When You Pull an All NighterThe FDA Is Literally Warning People Not to Drink Bleach Now

The Deadliest Type of Tuberculosis Has a New FDA-Approved TreatmentWe Just Got Closer Than Ever to a Working Chlamydia Vaccine

Doctors Take Hip X-Ray, Discover Patient's Penis Is Literally Turning to Bone

Alzheimer's Appears to Attack The Neurons That Keep Us AwakeScientists Think They've Solved The Mystery of Asteroid Ryugu's Origin

Astronomers Have Detected a Curious Dust Cloud 330 Light-Years AwayThe Sun Was Once Eerily Quiet For 70 Years. A Nearby Star Could Explain Why

Gobsmacking New Simulation Shows How Lights Turned on in Our UniverseMysterious Vortex Waves Discovered on The Sun Hint at New Solar Physics