The organization has recently released a health advisory (via Engadget) in which they are advising people not to put their phones in their pockets. It also asks that users to avoid using phones when unnecessary, such as when the cell signal is expected to see a spike, such as during poor network coverage where the phone might be working extra hard at trying to find a signal.
According to CDPH Director and State Public Health Officer Dr. Karen Smith, “Although the science is still evolving, there are concerns among some public health professionals and members of the public regarding long-term, high use exposure to the energy emitted by cell phones. We know that simple steps, such as not keeping your phone in your pocket and moving it away from your bed at night, can help reduce exposure for both children and adults.”
That being said, apart from issuing an advisory there’s really on so much the organization can do as it is pretty much unenforceable. Given how much we rely on our phones these days, it’s hard not to use them or keep them close, but if you’re worried about some of the issues highlighted by some experts, it could be worth considering.