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A one-hour documentary on San Diego's quality of life and other features will be part of the National Geographic Channel's "Smart Cities" series.

A man's testosterone level drops as he ages, but boosting it with supplements has been controversial. The first year of data from a big study now suggests a modest boost in libido for some men.

Airs Tuesday, Oct. 30, 2018 at 8 p.m. on KPBS TV

Frustrated scientists argued Wednesday that making nasty viruses even worse in the lab provides crucial insight into preventing pandemics. Others say it just ups the risk a lab germ will start one.

Seventy years ago, an atomic bomb wiped a city off the map. The committee that picked the target knew the destruction would be awful, but hoped it could end the war and stop future use of such bombs.

The federal government said it has received more than enough applications for a limited number of visas for skilled foreign workers.

Ellen Stofan's colleagues on a panel agreed with that assessment. But Stofan was quick to point out: "We are not talking about little green men. We are talking about little microbes."

A unique class of college students from California's Salinas Valley — many the children of farmworkers and immigrants — is working toward careers in major tech companies.

Southern California's whale-watching industry is reporting a busier than usual season along the coast this year. Good weather gets some of the credit, but researchers are also trying to figure out why the cetaceans appear to be doing well.

It's hard for anyone to get enough of the sunshine vitamin in the wintry North, and dark-skinned teens may be especially prone to a deficiency, doctors find. A weekly supplement can help.