This makes sense. I have terrible circulation and my exremities are always made of ice:
The Connection Between Migraines and Skin Temperature
Migraine sufferers have colder noses and hands than people without migraines, possibly due to underlying blood vessel abnormalities, says a study published online in Autonomic Neuroscience. Migraine headaches are considered a risk factor for cardiovascular diseases and stroke, but few studies have examined skin-temperature changes as a marker of vascular health, researchers said.
The study compared skin temperature in the face and hands of 41 Finnish women, 12 with migraines and 29 without headaches. A family history of migraine headaches was reported by 85% of migraine subjects and 31% of controls.
Half of the migraine subjects had headaches only on the right side and five had migraines accompanied by visual disturbances called aura. A digital infrared camera was used to measure skin temperature on the nose, cheeks, forehead, hands and fingertips in migraine subjects during a headache-free period, and in controls. The results were compared.
The average temperature of the nose and hands was about 3.6-degrees Fahrenheit lower in migraine subjects than controls. Of the migraine patients, 58% had skin temperatures below 86 degrees Fahrenheit, which is considered a normal skin temperature, in both the nose and fingers.
By comparison, the nose and finger temperatures were below 86 Fahrenheit in 31% and 40% of controls respectively.
The rest of the article can be read here: http://online.wsj.com/news/articles/SB10001424052702303497804579242423379994080
