Who's "remarking on"? (Saks was) remarking on?

"Saks lives with schizophrenia and has written about her experience with the illness in her award-winning best-selling autobiography...Saks is also a cancer survivor. She emphasizes ...while remarking on the different ways that mental and physical illnesses are regarded".

Saks was the one, who was doing the "remarking". ( The use of "she" implies that the remarking in this text was being made by Saks.)

Miller wrote:

"Saks lives with schizophrenia and has written about her experience with the illness in her award-winning best-selling autobiography...Saks is also a cancer survivor. She emphasizes ...while remarking on the different ways that mental and physical illnesses are regarded".

Saks was the one, who was doing the "remarking". ( The use of "she" implies that the remarking in this text was being made by Saks.)

Thanks.
Does " are regarded" mean "are concerned"?

the different ways that mental and physical illnesses are regarded".

Context:

Mental illness research

Saks experienced her first symptoms of mental illness at eight years old, but she had her first full-blown episode when a Marshall Scholar at Oxford University. Another breakdown happened while a student at Yale Law School, after which she "ended up forcibly restrained and forced to take anti-psychotic medication".[5]

Saks lives with schizophrenia and has written about her experience with the illness in her award-winning best-selling autobiography, The Center Cannot Hold: My Journey Through Madness published by Hyperion Books in 2007.[6] Saks is also a cancer survivor. She emphasizes that "illness of any kind need not define an individual, while remarking on the different ways that mental and physical illnesses are regarded".[7]

Saks says "there's a tremendous need to implode the myths of mental illness, to put a face on it, to show people that a diagnosis does not have to lead to a painful and oblique life."[8] In recent years, researchers have begun talking about mental health care in the same way addiction specialists speak of recovery — the lifelong journey of self-treatment and discipline that guides substance abuse programs. The idea remains controversial: managing a severe mental illness is more complicated than simply avoiding certain behaviors.[9] Approaches include "medication (usually), therapy (often), a measure of good luck (always) — and, most of all, the inner strength to manage one's demons, if not banish them".[8] That strength can come from any number of places, these former patients say: love, forgiveness, faith in God, a lifelong friendship. Saks says "we who struggle with these disorders can lead full, happy, productive lives, if we have the right resources."[8]