Will this just be for the summer, or will you be enrolling at the same school for graduate work and continuing on? I'm not clear how the program works--or if it's the same at all schools.
Also, can you talk about why you are interested in these diseases? Do they share a common biological problem? Is it more personal? Something else? Just to give me an idea what is interesting to you and why.
About life threatening diseases, your teacher is sort of right. Certainly, there's more funding for heart disease than for the common cold. But there is lots of funding for "orphan diseases," which are rare diseases. And if a disease interferes with a patient's ability to work and function or costs a lot of money to treat, it needn't be deadly to generate interest.
I've worked closely with someone who reviews grants, so I know a little bit about this.
I assume you've read about these two conditions. I don't personally know much about them. But I would recommend contacting researchers who already know about them and establishing a personal correspondence. If they are decent sorts, they are likely to want to give you advice.
The website WE MOVE has a section on essential tremor, so I'm guessing they can give you the names of researchers who would be knowledgeable and approachable.
Their website is:WE MOVE - Worldwide Education and Awareness for Movement Disorders (http://www.wemove.org/)
And their email contact is:
[email protected]
Don't be afraid to write to researchers to ask reasonable questions. Most people like to talk about the thing they think about all day long to anyone who is interested.