There never was a male fertility crisis

A new study suggests that reports of the impending infertility of the human male are greatly exaggerated.

  • A new review of a famous study on declining sperm counts finds several flaws.
  • The old report makes unfounded assumptions, has faulty data, and tends toward panic.
  • The new report does not rule out that sperm counts are going down, only that this could be quite normal.
Keep reading Show less

Could flickering lights fight Alzheimer's? Early research looks promising

An early feasibility study finds a potential new treatment for Alzheimer's disease.

Photo by N Kamalov on Unsplash

For the past few years, Annabelle Singer and her collaborators have been using flickering lights and sound to treat mouse models of Alzheimer's disease, and they've seen some dramatic results.

Keep reading Show less

Ketamine infusion: The new therapy for depression, explained

The treatment is here, but are we ready?

Credit: COLE BURSTON via Getty Images
  • Ketamine is the first hallucinogen approved for therapeutic use in the U.S.
  • Research has shown ketamine is effective at treating depression.
  • Though ketamine infusion therapy is now being offered at hundreds of North American clinics, there are unaddressed dangers in the current ketamine gold rush.
Keep reading Show less

Your voice might reveal personality traits

The way you speak might reveal a lot about you, such as your willingness to engage in casual sex.

JOSEP LAGO via Getty Images
  • A new study finds a deeper voice is associated with self-reported extraversion, dominance, and casual sex.
  • It was the first study on the topic to objectively measure voice pitch.
  • The authors suggest that hormones like testosterone might explain their findings.
Keep reading Show less

Pink placebo: Fake energy drink makes people run faster, further

Who needs steroids when you have the placebo effect?

Credit: Philip Strong/Unsplash
  • A study suggests that the effectiveness of sports drinks may depend in part on their color.
  • Runners who rinsed with a pink liquid ran better than those who consumed the same but colorless drink.
  • Improvement in their performance is likely due to a placebo effect.
Keep reading Show less
Quantcast