Is there an optimal time of day to exercise?

Two new studies say yes. Unfortunately, each claims a different time.

Bronx, N.Y.: NYPD officer Julissa Camacho works out at the 44th precinct gym in the Bronx, New York on April 3, 2019. (Photo by Alejandra Villa Loarca/Newsday via Getty Images)
  • Research at the Weizmann Institute of Sciences declares evening to be the best time for an exercise session.
  • Not so fast, says a new study at UC Irvine, which replies that late morning is the optimal workout time.
  • Both studies involved mice on treadmills and measured different markers to produce their results.
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Surprising Science

Meet the Bajau sea nomads — they can reportedly hold their breath for 13 minutes

The Bajau people's nomadic lifestyle has given them remarkable adaptions, enabling them to stay underwater for unbelievable periods of time. Their lifestyle, however, is quickly disappearing.

Wikimedia Commons
  • The Bajau people travel in small flotillas throughout the Phillipines, Malaysia, and Indonesia, hunting fish underwater for food.
  • Over the years, practicing this lifestyle has given the Bajau unique adaptations to swimming underwater. Many find it straightforward to dive up to 13 minutes 200 feet below the surface of the ocean.
  • Unfortunately, many disparate factors are erasing the traditional Bajau way of life.
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Culture & Religion
Image source: 80's Child / ArtFamily / Shutterstock / Big Think
  • A panel of eight experts in the evolution of the human face have collaborated on a new summary of how we've changed.
  • Their paper promotes the importance of social interaction as a factor in the structure of our visages.
  • We can visually express more than 20 categories of emotion. Early humans not so much.
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Surprising Science

19th-century medicine: Milk was used as a blood substitute for transfusions

Believe it or not, for a few decades, giving people "milk transfusions" was all the rage.

Photo credit: Robert Bye on Unsplash
  • Prior to the discovery of blood types in 1901, giving people blood transfusions was a risky procedure.
  • In order to get around the need to transfuse others with blood, some doctors resorted to using a blood substitute: Milk.
  • It went pretty much how you would expect it to.
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Surprising Science

Do calories even count? Research counters a longstanding assumption.

The calorie is the basic unit of measure of food — and it might be off.

Tourists enjoy a traditional 'Zapiekanka' at Krakow's Main Square. On Wednesday, March 6, 2019, in Krakow, Poland. (Photo by Artur Widak/NurPhoto via Getty Images)
  • In a new article in 1843, Peter Wilson argues that counting calories is an outdated form of weight management.
  • Research shows that labels are up to 20 percent off true caloric totals; 70 percent in frozen processed foods.
  • Not all digestive systems are created equally; humans process foods at different rates under varying conditions.
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Surprising Science