Test Your Knowledge

Once you’ve read through most of the site come back to see how much you’ve learned.

Topic Vitamin D

1. What is the best Vitamin D blood level for normal sleep?

a 10-40 ng/ml

b 20-50 ng/ml

c 30-100 ng /ml

d 60-80 ng/ml

2. Vitamin D blood levels are reported in which units?

a milligrams

b milliliters

c International Units

d ng/ml ( nanograms/ml) or (nmol/liter in countries other than the U.S.)

3. In the continental U.S. what months can we make vitamin D on our skin?

a January through May

b May through October

c October through February

4. What units do vitamin D tablets come in ?

a grams

b milligrams

c International Units

d ng/ml

5.Its better to take a big dose of vitamin D daily than to worry about what the blood level  is.

a true

b false

6. Vitamin D is considered by some to be a “hormone” and others a “vitamin”.

a true

b false

7.Vitamin D 2 which is prescribed in 50,000 IU pills is the same as vitamin D3 which is over the counter.

a true

b false

8. Nocturnal animals that are not in the sun use vitamin D2 made from fungus that grows on food to fill their vitamin D needs.

a true

b false

9. Animals that are awake during the day all make vitamin D3 on their skin from sun exposure.

a true

b false


Test Your Knowledge: Topic Headache


10. What nucleus of the brain stem is thought to be spontaneously activated by the migraine gene mutations?

a trigeminal nucleus caudalis

b dorsal horn for C2-C4

c both

11. Migraines are genetically linked to

a Calcium channel mutations

b Magnesium channel mutations

c Sodium channel mutations

d  a and c

12. Women who wake with a headache every morning are just whiny and want attention.

a true

b false

13.  Women with daily headache often have other medical complaints such as:

a irritable bowel syndrome

b painful periods

c polycystic ovarian syndrome

d sleep disorders

e all of the above

14. The astrocytes are cells in the brain that play baseball in  Houston, Texas

a true

b false

15. The astrocycte neurovascular unit

a connects chemical messages from the blood stream to neuronal receptors in the brain

b makes up the blood brain barrier

c explains the parallel observation of spreading electrical and blood flow changes observed in migraine

d is probably  where the migraine channel mutations are expressed

e all of the above

16. Migraine sufferers have headache because they “just can’t deal with stress”

a true

b false

17.  Sleep disorders and migraine frequency are linked in people who carry migraine gene mutations

a true

b false



1.d    2. d    3. b    4. c    5. b    6. a    7. b    8. a    9. a    10. c    11. d    12. b    13. e    14. b

15. e    16. b    17. a