Tension headaches are characterized by dull, non-pulsatile discomfort on both sides of the temples and forehead.
Typically last for 30-60 min or for days. Affect at least 40% of adults in any given year. Occur most commonly in the early morning and late afternoon. The morning variety is often triggered by lack of sleep
, awkward sleeping positions, hangovers and caffeine withdrawal
. Cause unknown!