Eh, that never stopped a lot of docs, nurses, and all other
folks who have to work shifts, from getting hitched mah!
But if you enter the profession single and unattached, and then
later, keep getting too exhausted to socialise, then yes, you do
end up being very very single. 
However, my social life is pretty ok mah! Only thing is, I cannot
get attached, not allowed to get attached now! Crucial turning
point for me now! Sacrificed too much to sabotage my plans now!

Most importantly, I haven't met that special someone yet!
Otherwise, if I'm in
love, plans can change one!
