Health & Fitness

According to a new study, fossils of a tiny sea creature with a delicately preserved nervous system solve a century-old debate over how the brain evolved in arthropods, the most species-rich group in the animal kingdom. Combining detailed anatomical studies of the fossilized nervous system with analyses of gene expression patterns in living descendants, they conclude that a shared blueprint of brain organization has been maintained from the Cambrian until today.

from Top Health News -- ScienceDaily https://ift.tt/wc9SpFz

A new study of thousands of people reveals a wide range in the amount of water people consume around the globe and over their lifespans, definitively spilling the oft-repeated idea that eight, 8-ounce glasses meet the human body's daily needs. Differences in environment, body composition and activity level contribute to daily water turnover of as little as 1 liter and as much as 10 liters.

from Top Health News -- ScienceDaily https://ift.tt/Ki5Xvpw