How did Earth transform from a hostile, acidic ocean world to one that nurtured life? Scientists at Yale and in Singapore ...

An acidic pH lower than 7 can inhibit the synthesis of organic molecules and damage living tissue; modern-day seawater has a neutral pH of about 8. "But modeling the long-term evolution of ocean ...

A pH of 7 is considered neutral (water and blood have a neutral pH.) Your skin functions best at slightly acidic pH levels of 4.5 to 5.5, but that number can vary slightly based upon the area of ...

but a healthy skin microbiome will always bring your pH back to where it should be,” says Dr. Mariwalla. “Your skin already has all these mechanisms to keep in homeostasis or a balanced state,” she ...

New Haven, Conn. — Scientists at Yale and in Singapore have devised what may be the ultimate acid test — a comprehensive model for estimating the origins of Earth’s habitability, based in part on ...

For centuries, static electricity has been the subject of intrigue and scientific investigation. Now, researchers from the ...

Despite the health claims surrounding alkaline water, scientific evidence suggests its purported benefits may be overhyped.

The Food and Drug Administration recently announced a recall of broccoli florets sold at Walmart stores. By Melinda Wenner Moyer The bacteria Listeria monocytogenes can turn up in all types of ...

Catalase has an optimum pH of 9 and a working range of between pH 7-11. Most other enzymes function within a working pH range of about pH 5-9 with neutral pH 7 being the optimum.