You toss down a tablet of ibuprofen and sip some water from your mug. Hopefully, this will reduce the thumping inside your head, and allow you to focus during the long day ahead in the neurology clinic.

"I'm getting too old to stay up all night," you think.

“Doctor—your first patient has arrived,” the receptionist cheerily announces.

You mutter an acknowledgement and ask for the patient to be sent in.