This should come as a surprise to no one - menopause can wreak havoc to sleep. In a study of 3000 menopausal women, 16% reported having trouble falling asleep and 41% said they work up many times during the night.

Interestingly, Caucasian women reported having the most trouble with sleep and menopause. Of course, changes in sleep were linked to changes in hormone levels, with poor sleep linked to decreases in estradiol and drops in follicle stimulating hormone (FSH) were linked to waking up several times at night.

More on Sleep and Menopause

As if people with Multiple Sclerosis didn't have enough to deal with -- it turns out that they are more likely to suffer from restless legs syndrome too.

Restless legs syndrome (RLS) is a movement of legs during sleep. These movements can interfere greatly with the quality of sleep -- causing daytime fatigue (the number one complaint of multiple sclerosis suffers).

The good news is that by identifying RLS in people with MS, treatment can be made to improve quality of life by treating RLS with medications. This could help alleivate the fatigue normally attributed to MS.

More on Fatigue and Multiple Sclerosis