To whom it may concern,
Capitalize the first letter of every word in the opening salutation. Also, use a colon:
To Whom It May Concern:
My name is David Jacobson, and I am ...
My commitment and dedication to
hard working (Instead of hard work, write about your commitment to achieving a particular goal in biomed science) is clear, and it remains a constant goal.
I
am have been a sufferer of asthma
myself since a young age. I understand ...
completely how terrible the disease can cause
you in a lot of suffering and ...
:-)