Logo to a Psychology Office

Hello!
My wife is  psychologist and we need to create a logo for her new office, to use it in everything like business card, mail, email, etc...
She is a young professional, very dynamic and modern, and we would like to communicate these characteristics but also has to be reliable and transmit respect, since it is related to health.
We don't like colorful styles, we prefer something discrete.
It has to be smart, that captures the attention and makes people think.
Please, describe if your work also includes specifications to print the material.
And feel free to send any other suggestions that we haven't described here.
You can answer both in english or in portuguese.
Could you please help us?
Thanks!
Heitor